At the A1 level, the word 'obscur' is introduced as a basic adjective to describe physical environments where there is little or no light. It is one of the essential words for describing a room, a street, or the night. For a beginner, the most important thing to learn is the literal meaning: 'dark'. You will often see it used in simple sentences like 'La chambre est obscure' (The room is dark). It is crucial at this stage to understand that French adjectives agree with the noun they describe. Since 'chambre' is feminine, we add an 'e' to 'obscur'. You should also learn the basic masculine and feminine singular forms. While 'sombre' is also common, 'obscur' is a great word to add to your vocabulary to sound more precise. You might also encounter it in the phrase 'il fait obscur', which simply means 'it is dark'. Focus on these literal, physical uses before moving on to more complex meanings. Practice by describing the lighting in different parts of your house or your classroom. Remember, 'obscur' follows the noun in most basic sentences, which is the standard rule for French adjectives you are learning at this level.
At the A2 level, you can begin to expand your use of 'obscur' beyond simple physical descriptions. While still primarily using it for dark places, you can start to apply it to weather conditions or times of day, such as 'un ciel obscur' (a dark sky) before a storm. This level also introduces the plural forms: 'obscurs' for masculine plural and 'obscures' for feminine plural. For example, 'des couloirs obscurs' (dark hallways). You should also begin to recognize 'obscur' in slightly more figurative contexts, such as describing a person who is not very well-known. An 'écrivain obscur' is a writer that most people haven't heard of. This is a common way the word is used in French culture. At A2, you are building the foundation to move from purely concrete descriptions to slightly more abstract ones. You should also be able to use 'obscur' in comparisons, like 'Cette pièce est plus obscure que l'autre' (This room is darker than the other). Understanding these basic comparative structures is a key part of the A2 curriculum. Practice using 'obscur' to describe not just what you see, but also the reputations of people or things in a very simple way.
At the B1 level, the figurative meanings of 'obscur' become much more prominent. You will learn to use the word to describe ideas, explanations, or texts that are difficult to understand. For instance, 'une explication obscure' is an explanation that is not clear. This is an essential word for expressing confusion or critiquing someone's communication style. You will also encounter 'obscur' in more formal or literary texts. At this stage, you should be comfortable with the word's placement and agreement in more complex sentence structures. You might also start to see the noun form 'l'obscurité' (darkness) and the verb 'obscurcir' (to darken/to obscure). Understanding how these words are related in a 'word family' will greatly enhance your vocabulary. B1 learners should also be aware of common collocations, such as 'un passé obscur' (a mysterious past) or 'des raisons obscures' (obscure reasons). These phrases are common in storytelling and news reports. You are now using 'obscur' to add depth and nuance to your descriptions, moving beyond the simple 'it is dark' of the A1 level to explore themes of mystery and lack of clarity.
At the B2 level, you are expected to use 'obscur' with a high degree of precision in both literal and figurative contexts. You will encounter the word in academic, professional, and literary settings. For example, you might analyze a 'texte obscur' in a literature class, discussing why the author chose such a difficult style. In a professional context, you might describe a legal clause as 'obscure' if it is poorly defined. B2 learners should also be familiar with the use of 'obscur' in fixed expressions and idioms, such as the oxymoron 'cette obscure clarté' from Corneille's *Le Cid*. This level requires an understanding of the subtle differences between 'obscur' and its synonyms like 'sombre', 'ténébreux', or 'opaque'. You should be able to explain why you chose 'obscur' over another word. Furthermore, you will see 'obscur' used in scientific contexts, such as 'la matière obscure' (dark matter). Your ability to use the word across different domains—science, law, literature, and daily life—is a hallmark of the B2 level. You should also be able to use the adverb 'obscurément' (obscurely) to describe how someone speaks or thinks.
At the C1 level, your understanding of 'obscur' should be near-native. You will appreciate the word's stylistic potential and use it to create specific atmospheres in your writing. You can use 'obscur' to describe philosophical concepts that are inherently difficult to grasp, or to discuss the 'zones obscures' of human psychology. At this level, you are sensitive to the historical and cultural weight of the word. You might use it to describe the 'siècles obscurs' (Dark Ages) or to discuss the 'clair-obscur' (chiaroscuro) in a painting by Caravaggio. Your use of 'obscur' is no longer just about communication but about expression. You can play with the word's placement to achieve different rhetorical effects, such as placing it before the noun for poetic emphasis: 'l'obscur destin d'un homme'. You are also fully aware of the word's role in the French intellectual tradition, where 'obscurité' is often the subject of philosophical debate. C1 learners can use 'obscur' to participate in high-level discussions about art, history, and science, employing the word with a sophisticated understanding of its many layers of meaning.
At the C2 level, 'obscur' is a tool for masterful expression. You have a complete grasp of its etymological roots (from the Latin *obscurus*) and how its meaning has evolved over centuries. You can use the word in its most subtle and abstract forms, perhaps in a dissertation on the 'poétique de l'obscur' in modern French poetry. You understand the finest nuances between 'obscur' and its most rare synonyms, and you can use it to describe the most complex states of being or thought. In your own writing, you might use 'obscur' to create a sense of profound mystery or to critique the limits of human knowledge. You are comfortable with all its grammatical forms and can use it effortlessly in any register, from the most formal legal document to the most evocative piece of creative writing. At C2, 'obscur' is not just a word you know; it is a word you inhabit, using it to navigate the most intricate corners of the French language and culture. You can discuss the word's use in the works of great French thinkers and writers, and you can employ it yourself with the same level of precision and artistry.

obscur in 30 Seconds

  • Obscur primarily means 'dark' or 'dimly lit' in physical contexts.
  • It also means 'unclear', 'mysterious', or 'difficult to understand' figuratively.
  • It describes people or things that are 'unknown' or 'not famous'.
  • It must agree in gender and number with the noun: obscur, obscure, obscurs, obscures.

The French word obscur is a multifaceted adjective that serves as a cornerstone for describing both physical environments and abstract concepts. At its most fundamental level, it translates to 'dark' or 'dim' in English, referring to a lack of light. However, its utility extends far beyond the mere absence of photons. When you use the word obscur, you are often signaling that something is hidden, difficult to perceive, or intellectually challenging to grasp. In the physical realm, an endroit obscur is a place where visibility is low, perhaps a basement without windows or a forest under a new moon. It implies a deeper level of darkness than the word sombre, which might just mean 'gloomy' or 'shady'. While sombre suggests a melancholy or a simple lack of brightness, obscur often carries a connotation of total concealment or mystery.

Physical Darkness
Used to describe rooms, nights, or corners where light does not reach. It is the literal lack of illumination that prevents clear sight.
Intellectual Obscurity
Refers to ideas, texts, or theories that are difficult to understand because they are complex, poorly expressed, or require specialized knowledge.
Social Anonymity
Describes individuals or origins that are unknown to the public or humble in nature, such as an 'obscur fonctionnaire' (an obscure civil servant).

In everyday conversation, you might hear a French speaker say 'Il fait obscur ici' when they enter a room and can't find the light switch. This is common, though 'sombre' is frequently used in this context as well. The choice of obscur often adds a touch of literary flair or emphasizes the completeness of the darkness. In a figurative sense, if a politician gives a speech that is full of jargon and vague promises, a critic might describe their rhetoric as obscure. Here, the word highlights the frustration of the listener who cannot see the speaker's true meaning. This duality makes obscur a powerful tool for writers and speakers alike, allowing them to bridge the gap between the sensory world and the world of ideas.

La forêt devenait de plus en plus obscure à mesure que le soleil disparaissait derrière l'horizon.

The forest became increasingly dark as the sun disappeared behind the horizon.

Furthermore, the word is essential in the world of art and history. The term clair-obscur (chiaroscuro) refers to the dramatic use of light and shadow in paintings, a technique mastered by artists like Caravaggio and Rembrandt. In this context, obscur is not a negative quality but a structural element that gives depth and emotion to the work. Historically, the 'Dark Ages' are often referred to in French as les siècles obscurs, highlighting a perceived lack of recorded history or cultural advancement during that period. This historical usage reinforces the idea that obscur is synonymous with the unknown or the unrecorded.

Il a passé sa vie dans un bureau obscur, loin de l'agitation du monde moderne.

He spent his life in an obscure office, far from the hustle and bustle of the modern world.

When dealing with legal or technical documents, obscur is a warning sign. An article obscur in a contract is one that is poorly drafted and open to multiple interpretations, often leading to disputes. Lawyers strive to avoid being obscur to ensure clarity and enforceability. In this professional sphere, the word is a direct antonym of clair (clear) and précis (precise). Understanding this nuance is vital for advanced learners who wish to navigate formal French environments. Whether you are describing a literal shadow or a metaphorical mystery, obscur provides the necessary shade of meaning to convey depth, confusion, or anonymity.

Les raisons de son départ soudain restent obscures pour la plupart de ses collègues.

The reasons for his sudden departure remain obscure to most of his colleagues.

Il s'est perdu dans les recoins obscurs de sa propre mémoire.

He got lost in the dark corners of his own memory.
Common Collocations
Une clarté obscure (a dark clarity - an oxymoron), une pièce obscure (a dark room), un passé obscur (a mysterious past).
Scientific Context
La matière obscure (dark matter) - the invisible substance that makes up much of the universe's mass.

Cette théorie scientifique est beaucoup trop obscure pour le grand public.

This scientific theory is much too obscure for the general public.

Using obscur correctly in French requires an understanding of basic adjective agreement and placement rules. As an adjective, obscur must match the gender (masculine or feminine) and number (singular or plural) of the noun it modifies. This is a fundamental step for English speakers, as English adjectives do not change form. In its masculine singular form, it is obscur. To make it feminine singular, you add an 'e', resulting in obscure. For the plural forms, you add an 's': obscurs (masculine plural) and obscures (feminine plural). Pronunciation remains relatively consistent, though the final 'e' in the feminine form allows the final 'r' to be heard more clearly in some regional accents, though generally, the 'r' is always pronounced in French.

Masculine Singular
Un couloir obscur (A dark hallway). Here, 'couloir' is masculine, so we use the base form.
Feminine Singular
Une pièce obscure (A dark room). Since 'pièce' is feminine, we add the 'e'.
Masculine Plural
Des chemins obscurs (Dark paths). 'Chemins' is masculine plural, so we add an 's'.
Feminine Plural
Des explications obscures (Obscure explanations). 'Explications' is feminine plural, so we add 'es'.

In terms of placement, obscur typically follows the noun it describes, which is the standard position for most French adjectives, especially those describing qualities or states. However, like many French adjectives, placing it before the noun can sometimes shift the meaning slightly or add a poetic, subjective emphasis. For example, un obscur écrivain (an obscure writer) emphasizes the writer's lack of fame or importance, whereas un écrivain obscur might suggest that the writer's style itself is difficult to understand. This nuance is subtle but important for achieving a natural-sounding flow in your French writing and speech.

La lumière filtrait à travers les rideaux, éclairant faiblement le salon obscur.

Light filtered through the curtains, dimly illuminating the dark living room.

When using obscur in comparative or superlative sentences, you follow the standard French patterns. To say 'darker', you use plus obscur. For 'less dark', use moins obscur. To say 'the darkest', use the definite article followed by plus obscur, ensuring agreement with the noun. For example: C'est la pièce la plus obscure de la maison (It is the darkest room in the house). Note how la plus obscure agrees with the feminine noun pièce. These structures allow you to describe varying degrees of darkness or complexity with precision.

Ses intentions étaient devenues obscures après cette étrange discussion.

His intentions had become obscure after that strange discussion.

Another important aspect is the use of obscur with the verb faire. While 'it is dark' is often translated as 'il fait noir' or 'il fait sombre', 'il fait obscur' is also used, particularly when the lack of light is profound or when a more formal tone is desired. For instance, 'Il fait trop obscur pour lire ici' (It is too dark to read here). This construction is very common in literature and formal speech. Mastering these patterns will help you transition from basic A1 French to more nuanced B1 and B2 levels, where the choice of adjective and its placement can significantly alter the tone of your message.

Les obscures profondeurs de l'océan cachent encore bien des mystères.

The obscure depths of the ocean still hide many mysteries.

Il a donné une réponse obscure qui n'a satisfait personne.

He gave an obscure answer that satisfied no one.
Agreement with Mixed Groups
When describing a group of both masculine and feminine nouns, use the masculine plural: 'Le salon et la cuisine sont obscurs'.
Adverbial Form
The adverb related to 'obscur' is obscurément, meaning obscurely or vaguely.

Il s'est réfugié dans un coin obscur du jardin pour réfléchir en paix.

He took refuge in a dark corner of the garden to reflect in peace.

The word obscur is ubiquitous in the French language, appearing in contexts ranging from high-brow literature to everyday weather reports and specialized scientific discussions. In the realm of literature, French authors have long favored obscur for its ability to evoke mood and mystery. From the gothic novels of the 19th century to modern existentialist prose, the word is used to describe everything from the literal shadows of a haunted mansion to the metaphorical 'darkness' of the human soul. When reading authors like Victor Hugo or Albert Camus, you will frequently encounter obscur as a means of exploring the unknown or the incomprehensible aspects of life. It is a word that carries weight, suggesting that what is being described is not just dark, but potentially significant or dangerous.

News and Media
Journalists often use 'obscur' to describe political scandals or financial deals that lack transparency. You might hear about 'des zones obscures' (shadowy areas) in a government report.
Science and Astronomy
In French science programs, 'la matière obscure' (dark matter) and 'l'énergie obscure' (dark energy) are standard terms used to describe the invisible forces of the cosmos.
Daily Life
You'll hear it when someone describes a basement, a poorly lit street, or even a 'dark' sense of humor (though 'noir' is more common for humor).

In French cinema and television, obscur is often used in the dialogue of thrillers and detective dramas. A detective might describe a suspect's past as obscur, suggesting that there are secrets waiting to be uncovered. In these contexts, the word serves as a narrative hook, building tension and curiosity. Similarly, in film criticism, you might read about a director's 'période obscure', referring to a time when their work was less popular or more experimental and difficult to categorize. The word acts as a bridge between the literal lack of light and the metaphorical lack of clarity, a concept that is central to many French artistic movements.

Le témoin a fait une déclaration obscure qui a compliqué l'enquête.

The witness made an obscure statement that complicated the investigation.

In academic and philosophical circles, obscur is a frequent guest. Philosophers like Michel Foucault or Jacques Derrida are sometimes criticized for their style obscur, implying that their complex language makes their ideas difficult to access. In this setting, being obscur can be either a mark of depth or a target for criticism, depending on the perspective of the reader. Students of French philosophy will quickly learn that l'obscurité is often contrasted with la clarté (clarity), a value highly prized in the French intellectual tradition since the Enlightenment. Descartes' famous 'idées claires et distinctes' (clear and distinct ideas) are the ultimate antidote to the obscur.

Les astronomes étudient les régions obscures de la galaxie pour comprendre sa formation.

Astronomers study the dark regions of the galaxy to understand its formation.

Lastly, you will encounter obscur in the world of law and bureaucracy. An 'obscur arrêté préfectoral' (an obscure prefectural decree) might be mentioned in a news story about a local controversy. In this case, the word suggests that the decree is not well-known to the public or is written in such dense legal language that its implications are hidden. For anyone living or working in a French-speaking country, being able to recognize and use obscur in these various contexts is essential for full linguistic and cultural integration. It is a word that appears everywhere, from the shadows of a street corner to the fine print of a contract.

Elle s'intéresse à l'histoire des ordres religieux obscurs du Moyen Âge.

She is interested in the history of obscure religious orders from the Middle Ages.

Le poète utilise des métaphores obscures pour exprimer sa tristesse.

The poet uses obscure metaphors to express his sadness.
Music and Culture
Many French indie bands or underground artists are described as 'obscurs' by the mainstream media, highlighting their niche appeal.
Internet Slang
While not slang per se, you might see 'obscur' used on French forums to describe a very specific, hard-to-find meme or reference.

Il y a quelque chose d'obscur dans cette affaire que nous ne comprenons pas encore.

There is something obscure about this case that we do not yet understand.

One of the most frequent mistakes English speakers make with obscur is confusing it with the English word 'obscure' in terms of frequency and tone. While they are cognates, obscur is used much more commonly in French to describe physical darkness than 'obscure' is in English. In English, we almost always say 'dark' for a room and save 'obscure' for abstract ideas. In French, obscur is perfectly natural for a dark room, though sombre or noir are also options. Another common error is failing to apply gender and number agreement. Beginners often forget to add the 'e' for feminine nouns or the 's' for plural nouns, leading to sentences like 'la chambre est obscur' (incorrect) instead of 'la chambre est obscure' (correct). This mistake is particularly noticeable to native speakers as it affects the grammatical harmony of the sentence.

Agreement Errors
Forgetting to change the form: 'Les nuits sont obscur' (Wrong) vs 'Les nuits sont obscures' (Right).
Confusion with 'Sombre'
Using 'obscur' when 'sombre' might be more appropriate for a gloomy mood or a dark color (like dark blue - bleu sombre).
Preposition Pitfalls
Using the wrong preposition when saying 'obscure to someone'. It should be 'obscur pour quelqu'un', not 'obscur à quelqu'un'.

Learners also often confuse obscur with noir. While noir literally means the color black, it is also used to mean 'pitch black' or 'very dark'. For example, 'il fait noir' is the most common way to say 'it's dark out' at night. Using 'il fait obscur' is correct but sounds more formal or literary. If you want to describe a dark blue or dark green, you should use foncé (e.g., bleu foncé) or sombre, but never obscur. Saying 'un bleu obscur' would sound very strange to a native speaker, as obscur describes the state of light or clarity, not the shade of a color.

N'utilisez pas obscur pour parler d'une couleur foncée comme le bleu ou le vert.

Do not use 'obscur' to talk about a dark color like blue or green.

Another nuance is the difference between obscur and vague. If an explanation is unclear, you can use either, but they convey different meanings. Vague suggests that the explanation lacks detail or precision, while obscur suggests that it is fundamentally difficult to understand or perhaps intentionally confusing. Choosing the wrong one can lead to a misunderstanding of your critique. Additionally, English speakers sometimes try to use obscur as a verb, like 'to obscure'. In French, the verb is obscurcir. Saying 'les nuages obscur le soleil' is a major grammatical error; it should be 'les nuages obscurcissent le soleil'.

Il est incorrect de dire « une personne obscure » pour dire qu'elle n'est pas honnête.

It is incorrect to say "an obscure person" to mean they are not honest.

Finally, watch out for the placement of the adjective. While placing obscur before the noun is possible in literary contexts, it can sound overly dramatic or archaic in everyday conversation. For most learners, it is safer to stick to placing it after the noun. For example, 'un coin obscur' is much more natural than 'un obscur coin'. By paying attention to these common pitfalls—agreement, confusion with synonyms, and proper placement—you can use obscur with the confidence and precision of a native speaker.

Les couloirs obscurs du château faisaient peur aux enfants.

The dark hallways of the castle frightened the children.

Il faut éviter les termes obscurs quand on s'adresse à des débutants.

One must avoid obscure terms when addressing beginners.
Pronunciation Note
The 'u' in 'obscur' is the classic French /y/ sound. Be careful not to pronounce it like the 'u' in 'under'.
False Friend Warning
'Obscur' is a partial cognate. It shares many meanings with 'obscure', but the usage frequency in physical contexts is much higher in French.

C'est un point obscur du règlement que personne n'a jamais appliqué.

It is an obscure point of the regulations that no one has ever applied.

While obscur is a versatile word, French offers a rich palette of synonyms and related terms that can provide more specific nuances depending on the context. Understanding these alternatives will help you refine your descriptions and avoid repetitive language. The most common synonym is sombre. While sombre and obscur are often interchangeable, sombre is more frequently used to describe a gloomy atmosphere, a dark color, or a melancholy mood. For example, a rainy day is sombre, and a person in a bad mood has des idées sombres. Obscur, on the other hand, often implies a more profound lack of light or a greater degree of mystery. Another close relative is noir, which literally means black. When used to describe a room, il fait noir suggests it is pitch black, whereas il fait obscur might just mean it is very dimly lit.

Sombre
Often used for colors and moods. 'Un manteau sombre' (a dark coat) or 'une humeur sombre' (a gloomy mood).
Ténébreux
A more literary and dramatic word. It evokes a deep, almost mystical darkness. Often used to describe a 'tall, dark, and handsome' stranger: 'un bel inconnu ténébreux'.
Opaque
Used when light cannot pass through something literally, or when a process (like government spending) is not transparent.

In figurative contexts, if you find an idea or a text difficult to understand, you might use confus, vague, or inintelligible. Confus suggests a lack of order or clarity in the speaker's thoughts. Vague implies a lack of precision, as if the speaker is being deliberately evasive. Inintelligible is the strongest of these, meaning that the information is completely impossible to understand, perhaps because of a language barrier or poor audio quality. Obscur sits somewhere in the middle, suggesting that the meaning is hidden and requires effort to uncover. For people who are not famous, you can use méconnu (little-known) or anonyme (anonymous) instead of obscur, depending on whether you want to emphasize their lack of recognition or their lack of a name.

Le ciel est sombre aujourd'hui, il va certainement pleuvoir.

The sky is gloomy today; it is certainly going to rain.

When it comes to antonyms, the most direct opposite of obscur is clair (clear/bright). Just as obscur covers both physical light and mental clarity, so does clair. A pièce claire is a bright room, and an explication claire is an easy-to-understand explanation. Other antonyms include lumineux (luminous/bright), évident (obvious), and célèbre (famous). By contrasting obscur with these words, you can better understand its boundaries. For instance, something that is lumineux is not just 'not dark', it is actively emitting or reflecting a lot of light, whereas clair might just mean it is well-lit enough to see.

C'est un chercheur méconnu qui a pourtant fait une découverte majeure.

He is a little-known researcher who nevertheless made a major discovery.

Finally, consider the word mystérieux. While obscur can describe something mysterious, mystérieux specifically focuses on the sense of wonder or secrecy. An objet obscur might just be hard to see or identify, but an objet mystérieux suggests it has a secret purpose or origin. By choosing between these synonyms and alternatives, you can tailor your French to be as precise and evocative as possible. Whether you are describing the depths of the ocean, the complexities of a law, or the fame of an artist, having a range of words at your disposal is the mark of a truly proficient language learner.

Son langage est devenu tout à fait inintelligible à cause de la fatigue.

His speech became completely unintelligible due to fatigue.

Elle a une vision très claire de ce qu'elle veut accomplir.

She has a very clear vision of what she wants to accomplish.
Comparison: Obscur vs. Foncé
'Foncé' is for the depth of color (dark green), while 'obscur' is for the lack of light (dark room).
Comparison: Obscur vs. Caché
'Caché' means hidden by something else, whereas 'obscur' means hidden by lack of light or clarity.

La situation politique actuelle est extrêmement opaque.

The current political situation is extremely opaque.

How Formal Is It?

Fun Fact

The English word 'obscure' and the French 'obscur' share the exact same Latin ancestor, making them 'cognates'. However, French uses 'obscur' more frequently for literal darkness.

Pronunciation Guide

UK /ɔb.skyʁ/
US /ab.skjʊr/
In French, the stress is usually on the final syllable: ob-SCUR.
Rhymes With
Mur (wall) Pur (pure) Sûr (sure) Dûr (hard) Azur (azure) Futur (future) Mûr (ripe) Parcour (run/path)
Common Errors
  • Pronouncing the 'u' like the 'u' in 'cup' (it should be /y/).
  • Pronouncing the 'r' like an English 'r' at the tip of the tongue.
  • Forgetting to pronounce the 'e' at the end of 'obscure' as a slight vowel sound in poetry.
  • Making the 'o' too long like in 'boat'.
  • Adding a 'y' sound before the 'u' like in the English word 'obscure'.

Difficulty Rating

Reading 2/5

Easy to recognize as it is similar to the English word. Common in all types of texts.

Writing 3/5

Requires attention to gender and number agreement (obscur/obscure/obscurs/obscures).

Speaking 3/5

The French 'u' sound (/y/) and 'r' can be tricky for beginners to pronounce correctly.

Listening 2/5

Clearly pronounced and usually easy to distinguish in context.

What to Learn Next

Prerequisites

Noir Sombre Lumière Clair Comprendre

Learn Next

Obscurité Obscurcir Ténébreux Opaque Mystère

Advanced

Hermétique Abstrus Ésotérique Clandestin Nébuleux

Grammar to Know

Adjective Agreement

La forêt (fem) est obscure (fem).

Adjective Placement

Un coin obscur (usually follows the noun).

Using 'Il fait' for Light

Il fait obscur dans la maison.

Comparative Adjectives

Cette rue est plus obscure que la mienne.

Nouns from Adjectives

L'obscurité (noun) vient de l'adjectif obscur.

Examples by Level

1

La chambre est très obscure.

The room is very dark.

Obscure is feminine to match 'la chambre'.

2

Il fait obscur dans le couloir.

It is dark in the hallway.

The phrase 'il fait' is used for weather and light conditions.

3

Je ne vois rien, c'est trop obscur.

I see nothing, it's too dark.

Obscur is used here as a general state.

4

Où est la lampe ? Le salon est obscur.

Where is the lamp? The living room is dark.

'Salon' is masculine, so 'obscur' has no 'e'.

5

Elle a peur des endroits obscurs.

She is afraid of dark places.

'Endroits' is masculine plural, so we add 's'.

6

Le ciel devient obscur le soir.

The sky becomes dark in the evening.

'Ciel' is masculine singular.

7

C'est une petite rue obscure.

It is a small, dark street.

'Rue' is feminine, so 'obscure' has an 'e'.

8

Le chat noir est dans le coin obscur.

The black cat is in the dark corner.

'Coin' is masculine singular.

1

Les nuages rendent le jardin obscur.

The clouds make the garden dark.

'Jardin' is the object being described as 'obscur'.

2

C'est un écrivain obscur mais talentueux.

He is an obscure but talented writer.

Here 'obscur' means 'unknown'.

3

Nous avons marché dans des forêts obscures.

We walked in dark forests.

'Forêts' is feminine plural, so 'obscures' ends in 'es'.

4

Le film était un peu obscur pour moi.

The movie was a bit obscure (hard to understand) for me.

Using 'obscur' for lack of clarity.

5

Il y a des zones obscures dans son histoire.

There are some obscure areas in his story.

Figurative use meaning 'unclear parts'.

6

La cave est plus obscure que le garage.

The basement is darker than the garage.

Comparative structure: 'plus... que'.

7

Il portait des vêtements de couleur obscure.

He was wearing dark-colored clothes.

'Couleur' is feminine, so 'obscure' matches it.

8

Elle vit dans un village obscur de la montagne.

She lives in an obscure mountain village.

'Village' is masculine.

1

Ses explications étaient trop obscures pour les élèves.

His explanations were too obscure for the students.

'Explications' is feminine plural.

2

L'origine de cette tradition reste obscure.

The origin of this tradition remains obscure.

Meaning 'unknown' or 'mysterious'.

3

Il a un passé obscur dont il ne parle jamais.

He has an obscure past that he never talks about.

Common collocation: 'un passé obscur'.

4

La lumière faiblissait, rendant tout obscur.

The light was fading, making everything dark.

Using 'obscur' as a result of an action.

5

Le poète utilise un langage très obscur.

The poet uses a very obscure language.

Describing a difficult style.

6

Les raisons de son refus sont restées obscures.

The reasons for his refusal remained obscure.

'Raisons' is feminine plural.

7

On ne peut pas lire ce texte, il est trop obscur.

We cannot read this text; it is too obscure.

Can mean either physically hard to see or hard to understand.

8

Il s'est réfugié dans l'obscur silence de la nuit.

He took refuge in the dark silence of the night.

Literary use with 'silence'.

1

Cette clause du contrat est particulièrement obscure.

This clause of the contract is particularly obscure.

Formal usage in law/business.

2

Les scientifiques cherchent à détecter la matière obscure.

Scientists are seeking to detect dark matter.

Scientific term: 'la matière obscure'.

3

C'est une période obscure de l'histoire de ce pays.

It is an obscure period in the history of this country.

Meaning 'unknown' or 'poorly documented'.

4

L'auteur joue sur le contraste entre le clair et l'obscur.

The author plays on the contrast between light and dark.

Using 'l'obscur' as a noun.

5

Son discours était plein de métaphores obscures.

His speech was full of obscure metaphors.

'Métaphores' is feminine plural.

6

Il a vécu une vie obscure, loin de la gloire.

He lived an obscure life, far from fame.

Meaning 'humble' or 'uncelebrated'.

7

Les profondeurs obscures de l'océan sont inexplorées.

The dark depths of the ocean are unexplored.

'Profondeurs' is feminine plural.

8

Il y a un lien obscur entre ces deux événements.

There is an obscure link between these two events.

Meaning 'hidden' or 'not obvious'.

1

Cette œuvre est d'une beauté obscure et inquiétante.

This work is of an obscure and unsettling beauty.

Stylistic use for aesthetic description.

2

L'obscur dessein du méchant n'est révélé qu'à la fin.

The villain's obscure plan is only revealed at the end.

Placement before the noun for emphasis.

3

Elle s'est perdue dans les méandres obscurs de la bureaucratie.

She got lost in the obscure meanders of bureaucracy.

Metaphorical use for institutional complexity.

4

Le philosophe traite de l'obscur désir de l'homme.

The philosopher deals with the obscure desire of man.

Abstract philosophical usage.

5

Il a été condamné pour des motifs obscurs.

He was convicted for obscure motives.

Suggests a lack of justice or transparency.

6

Le peintre maîtrise parfaitement la technique du clair-obscur.

The painter perfectly masters the chiaroscuro technique.

Specific art historical term.

7

Les prophéties sont souvent rédigées en termes obscurs.

Prophecies are often written in obscure terms.

Referring to cryptic or coded language.

8

Il reste une zone obscure dans son témoignage.

There remains an obscure area in his testimony.

Implies something is being hidden.

1

L'herméneutique de ce texte reste désespérément obscure.

The hermeneutics of this text remain desperately obscure.

High-level academic vocabulary.

2

Il a sombré dans un obscur anonymat après son échec.

He sank into an obscure anonymity after his failure.

Poetic and formal structure.

3

Le poème évoque cette obscure clarté qui tombe des étoiles.

The poem evokes that dark clarity that falls from the stars.

Famous literary oxymoron from Corneille.

4

La dialectique hégélienne peut paraître obscure aux non-initiés.

Hegelian dialectics can seem obscure to the uninitiated.

Specialized intellectual context.

5

Il s'agit d'un point obscur de la jurisprudence actuelle.

It is an obscure point of current case law.

Advanced legal terminology.

6

L'obscurité de son style cache parfois une absence de pensée.

The obscurity of his style sometimes hides a lack of thought.

Critique of intellectual pretension.

7

Les forces obscures à l'œuvre dans la société sont inquiétantes.

The obscure forces at work in society are worrying.

Sociopolitical commentary.

8

Il explore les replis obscurs de la conscience humaine.

He explores the dark folds of human consciousness.

Psychological and philosophical depth.

Common Collocations

Une pièce obscure
Un passé obscur
La matière obscure
Un texte obscur
Des raisons obscures
Un écrivain obscur
Clair-obscur
Une clarté obscure
Un coin obscur
Une origine obscure

Common Phrases

Il fait obscur.

— It is dark. Used to describe the lighting in a room or outside.

Il fait obscur, allume la lumière !

Rester dans l'obscur.

— To remain in the dark. Can be literal or figurative (not knowing something).

Je préfère rester dans l'obscur pour l'instant.

Une zone obscure.

— A shadowy area. Often used for things that are not transparent or legal.

Il y a une zone obscure dans ce contrat.

Un point obscur.

— An unclear point. Used when part of an explanation is not understood.

Il reste un point obscur dans votre théorie.

Sortir de l'obscurité.

— To emerge from darkness. Often means becoming famous or revealing a truth.

Cet acteur est enfin sorti de l'obscurité.

Dans l'obscur.

— In the dark. Used as an adverbial phrase.

Il travaille souvent dans l'obscur.

L'énergie obscure.

— Dark energy. A common scientific term in physics.

L'énergie obscure accélère l'expansion de l'univers.

Une lueur obscure.

— A dim or dark light. A poetic way to describe faint illumination.

Une lueur obscure filtrait sous la porte.

Un destin obscur.

— An unknown or humble destiny.

Il a accepté son destin obscur avec dignité.

Vivre dans l'obscur.

— To live in obscurity or without fame.

Certains poètes préfèrent vivre dans l'obscur.

Often Confused With

obscur vs Sombre

Sombre is for gloomy moods or dark colors. Obscur is for lack of light or clarity.

obscur vs Noir

Noir is the color black. Il fait noir means it's pitch dark.

obscur vs Foncé

Foncé is used specifically for shades of color (e.g., bleu foncé).

Idioms & Expressions

"Laisser dans l'obscurité"

— To keep someone in the dark about something. Not sharing information.

Ils m'ont laissé dans l'obscurité concernant le projet.

Neutral
"Éclaircir un point obscur"

— To clarify an unclear point. Often used in academic or professional settings.

Nous devons éclaircir ce point obscur avant de continuer.

Formal
"Se perdre dans l'obscur"

— To get lost in the dark, literally or figuratively (losing one's way in thoughts).

Il s'est perdu dans l'obscur de ses souvenirs.

Literary
"L'obscur objet du désir"

— The obscure object of desire. A famous phrase referring to something wanted but hard to grasp.

Pour lui, la gloire est un obscur objet du désir.

Cultural/Literary
"Travailler dans l'ombre et l'obscur"

— To work behind the scenes without recognition.

Il a passé dix ans à travailler dans l'obscur.

Neutral
"Sortir un fait de l'obscur"

— To bring a fact to light that was previously unknown.

L'historien a sorti ce fait de l'obscur.

Formal
"Une obscure affaire"

— A mysterious or shady business deal or legal case.

Il est impliqué dans une obscure affaire de corruption.

Neutral
"L'obscurité des temps"

— The obscurity of time. Referring to the distant, poorly recorded past.

Cette légende remonte à l'obscurité des temps.

Literary
"Faire l'obscur"

— To intentionally make something unclear or difficult to understand.

Il fait l'obscur pour ne pas répondre directement.

Neutral
"Plonger dans l'obscur"

— To plunge into darkness or into a state of confusion.

Le pays a plongé dans l'obscur après la guerre.

Literary

Easily Confused

obscur vs Obscurcir

It is the verb form.

Obscur is an adjective (dark); obscurcir is a verb (to make dark).

Les nuages obscurcissent le ciel.

obscur vs Obscurité

It is the noun form.

Obscur is the quality; obscurité is the state of being dark.

J'ai peur de l'obscurité.

obscur vs Vague

Both mean unclear.

Vague means imprecise; obscur means hard to understand or hidden.

Il a donné une réponse vague à une question obscure.

obscur vs Sombre

Very close synonyms.

Sombre is more about mood/color; obscur is more about light/mystery.

Une humeur sombre dans une pièce obscure.

obscur vs Ténébreux

Both mean dark.

Ténébreux is literary and often used for people; obscur is more general.

Un homme ténébreux dans un bois obscur.

Sentence Patterns

A1

Le/La [noun] est obscur(e).

Le couloir est obscur.

A2

C'est un(e) [noun] obscur(e).

C'est une rue obscure.

B1

Ses [noun plural] sont obscures.

Ses explications sont obscures.

B2

[Noun] reste obscur(e).

L'origine du mot reste obscure.

C1

Un obscur [noun]...

Un obscur sentiment de peur l'envahit.

C2

L'obscurité de [noun]...

L'obscurité de son propos nous a surpris.

A1

Il fait obscur.

Il fait obscur dehors.

B1

Vivre dans l'obscur.

Il a choisi de vivre dans l'obscur.

Word Family

Nouns

L'obscurité (darkness)
L'obscurcissement (darkening/obscuring)
L'obscurantisme (obscurantism - opposition to enlightenment)

Verbs

Obscurcir (to darken/to obscure)
S'obscurcir (to become dark/cloudy)

Adjectives

Obscur (dark/obscure)
Obscurci (darkened/clouded)

Related

Sombre
Ténébreux
Clair-obscur
Noir
Opaque

How to Use It

frequency

High. It is a fundamental word in the French language.

Common Mistakes
  • La chambre est obscur. La chambre est obscure.

    The noun 'chambre' is feminine, so the adjective must also be feminine.

  • Une voiture obscure bleue. Une voiture bleu sombre.

    Do not use 'obscur' to describe a dark shade of a color. Use 'sombre' or 'foncé'.

  • C'est un obscur homme. C'est un homme obscur.

    While 'obscur' can sometimes precede the noun, it is much more common and safer to place it after.

  • Les nuages obscur le soleil. Les nuages obscurcissent le soleil.

    You cannot use the adjective 'obscur' as a verb. You must use the verb 'obscurcir'.

  • Son explication est obscure à moi. Son explication est obscure pour moi.

    In French, we say something is obscure 'pour' (for) someone, not 'à' (to) someone.

Tips

Agreement is Key

Always check the gender of your noun. 'Un couloir obscur' vs 'Une cave obscure'. This is the most common mistake for English speakers.

Expand with Word Families

Learn 'obscurité' (noun) and 'obscurcir' (verb) along with 'obscur'. This helps you express the concept in different grammatical forms.

Master the 'U'

The 'u' in 'obscur' is the /y/ sound. Practice by saying 'ee' and then rounding your lips without moving your tongue.

Use for Atmosphere

In creative writing, use 'obscur' to describe shadows or secrets. it creates a more mysterious mood than the simple word 'noir'.

Abstract vs. Concrete

Remember that 'obscur' works for both a dark room (concrete) and a difficult theory (abstract). It's a very versatile word.

Obscur vs. Sombre

If you mean gloomy or a dark color, use 'sombre'. If you mean a lack of light or mystery, use 'obscur'.

Artistic Reference

Knowing the term 'clair-obscur' will help you discuss art and cinema in French-speaking circles.

Listen for Collocations

Phrases like 'un passé obscur' are very common in movies. Training your ear to hear them will improve your comprehension.

Safety First

If you're not sure, place 'obscur' after the noun. It's the standard position and always correct.

Scientific Accuracy

Use 'matière obscure' and 'énergie obscure' when talking about space. These are fixed terms.

Memorize It

Mnemonic

Think of an 'OBS'tacle that 'CUR'tails the light. An 'obscur' place is where light is blocked by an obstacle.

Visual Association

Imagine a dark, dusty library (obscur) where the books are hard to read and the authors are unknown (obscurs).

Word Web

Dark Mysterious Unknown Complex Shadowy Dim Vague Hidden

Challenge

Try to use 'obscur' in three different ways today: once for a dark room, once for a difficult idea, and once for a person who isn't famous.

Word Origin

The word 'obscur' comes from the Old French 'obscur', which was borrowed from the Latin 'obscurus'. The Latin root is composed of 'ob-' (over/against) and a root related to 'sky' or 'cover'.

Original meaning: In Latin, 'obscurus' meant 'covered over', 'dark', 'dim', or 'unintelligible'. This dual meaning of physical and mental darkness has been preserved in French.

Indo-European > Italic > Romance > French.

Cultural Context

There are no major sensitivities, but when describing a person as 'obscur', ensure the context makes it clear whether you mean they are unknown (neutral) or their character is suspicious (potentially negative).

English speakers often use 'dark' for everything physical and 'obscure' for the abstract. In French, 'obscur' covers both comfortably, making it a very useful 'all-in-one' word.

Corneille's 'Cette obscure clarté qui tombe des étoiles' from *Le Cid*. The film 'Cet obscur objet du désir' by Luis Buñuel. The scientific concept of 'matière obscure' (dark matter) discussed in French media.

Practice in Real Life

Real-World Contexts

Describing a room or place

  • Une pièce obscure
  • Un couloir obscur
  • Il fait obscur ici
  • Un coin obscur

Talking about an idea or book

  • Une explication obscure
  • Un texte obscur
  • Un passage obscur
  • Une théorie obscure

Describing a person's fame

  • Un écrivain obscur
  • Un artiste obscur
  • Une vie obscure
  • Sortir de l'obscurité

Science and Astronomy

  • La matière obscure
  • L'énergie obscure
  • Un astre obscur
  • Les régions obscures

History and Mystery

  • Un passé obscur
  • Une origine obscure
  • Des siècles obscurs
  • Des motifs obscurs

Conversation Starters

"Trouves-tu que ce film est un peu obscur ?"

"Pourquoi préfères-tu travailler dans un endroit obscur ?"

"Connais-tu des écrivains obscurs que tu aimes beaucoup ?"

"Est-ce qu'il fait trop obscur pour lire sans lampe ?"

"Que penses-tu de la théorie de la matière obscure ?"

Journal Prompts

Décrivez un souvenir d'enfance qui se déroule dans un endroit obscur.

Avez-vous déjà lu un livre très obscur ? Qu'est-ce qui le rendait difficile à comprendre ?

Imaginez la vie d'un écrivain obscur qui devient célèbre après sa mort.

Pourquoi certaines personnes préfèrent-elles vivre une vie obscure plutôt que célèbre ?

Décrivez une situation où les intentions de quelqu'un vous ont semblé obscures.

Frequently Asked Questions

10 questions

No, for colors, you should use 'foncé' (bleu foncé) or 'sombre' (bleu sombre). 'Obscur' is for the lighting of an environment or the clarity of an idea.

Generally, yes. 'Sombre' is the everyday word for gloomy or dark, while 'obscur' adds a more precise or literary tone.

You can say 'Il commence à faire nuit' or 'Le ciel s'obscurcit'. 'Il fait obscur' is usually for when it is already dark.

Not necessarily. In art (clair-obscur), it's a technique. For a person, it might just mean they are humble or not famous, which isn't inherently bad.

The feminine plural is 'obscures'. For example: 'Des chambres obscures'.

It can imply it, but 'louche' or 'suspect' are much more common for describing a suspicious person or situation.

Yes, it is the standard scientific term in French. You wouldn't say 'matière noire' or 'matière sombre' in this context.

The difference is subtle. 'Un écrivain obscur' might mean his writing is hard to understand. 'Un obscur écrivain' emphasizes that he is not famous.

Yes, the 'r' is always pronounced in French, unlike in some English accents. It is a soft, uvular sound.

In French, we usually say 'humour noir' for dark or black humor. 'Humour obscur' would sound very strange.

Test Yourself 200 questions

writing

Write a sentence describing a dark room using 'obscure'.

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writing

Translate: 'The hallway is dark.'

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writing

Write a sentence about an unknown writer.

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writing

Translate: 'The dark streets are dangerous.'

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writing

Describe a difficult explanation using 'obscure'.

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writing

Translate: 'He has a mysterious past.'

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writing

Write a sentence about dark matter in the universe.

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writing

Translate: 'The contract contains an unclear clause.'

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writing

Use 'obscur' in a poetic sentence about the night.

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writing

Translate: 'She emerged from obscurity after her first book.'

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writing

Write a short paragraph about the 'siècles obscurs'.

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writing

Translate: 'The philosopher explores the dark folds of the soul.'

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writing

Translate: 'It is dark.'

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writing

Translate: 'The dark clouds.'

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writing

Translate: 'Obscure reasons.'

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writing

Translate: 'A darkened sky.'

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writing

Translate: 'An obscure feeling.'

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writing

Translate: 'The obscurity of his style.'

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writing

Translate: 'A dark corner.'

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writing

Translate: 'Dark energy.'

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speaking

Pronounce: 'La chambre est obscure.'

Read this aloud:

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speaking

Say 'It is dark' in French.

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speaking

Pronounce: 'Un écrivain obscur.'

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speaking

Say 'The dark forests' in French.

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speaking

Pronounce: 'Une explication obscure.'

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speaking

Say 'A mysterious past' in French.

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speaking

Pronounce: 'La matière obscure.'

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speaking

Say 'Dark energy' in French.

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speaking

Pronounce the oxymoron: 'Cette obscure clarté'.

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speaking

Say 'To emerge from obscurity' in French.

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speaking

Pronounce: 'L'herméneutique obscure.'

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speaking

Say 'The dark folds of consciousness' in French.

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speaking

Say 'A dark corner'.

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speaking

Say 'Dark clouds'.

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speaking

Say 'Obscure reasons'.

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speaking

Say 'An ambiguous clause'.

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speaking

Say 'An obscure feeling'.

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speaking

Say 'Opposition to enlightenment'.

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speaking

Say 'The room is dark'.

Read this aloud:

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speaking

Say 'An obscure text'.

Read this aloud:

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listening

Listen to the word: 'obscur'. Is it masculine or feminine?

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listening

Listen to: 'La cave est obscure.' What is dark?

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listening

Listen to: 'Les couloirs obscurs.' Is it one or many hallways?

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listening

Listen to: 'Un village obscur.' Is the village famous?

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listening

Listen to: 'Une explication obscure.' Was it clear?

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listening

Listen to: 'Il a un passé obscur.' What is mysterious?

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listening

Listen to: 'La matière obscure.' What scientific concept is mentioned?

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listening

Listen to: 'Une clause obscure.' What needs to be checked?

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listening

Listen to: 'L'obscure clarté.' What is this poetic device?

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listening

Listen to: 'Sortir de l'obscurité.' Does it mean getting lost?

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listening

Listen to: 'L'obscurantisme.' Does this favor education?

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listening

Listen to: 'Les replis obscurs.' What is being explored?

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listening

Listen to: 'Il fait obscur.' What is the situation?

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listening

Listen to: 'Des raisons obscures.' Are the reasons known?

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listening

Listen to: 'Un écrivain obscur.' Is he famous?

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/ 200 correct

Perfect score!

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