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A2 adjective #3,000 よく出る 12分で読める

incertain

練習する 例文 メモとヒント incertain 30秒で
解説 incertain in your Level:
At the A1 level, learners are just beginning to build their foundational vocabulary. The word 'incertain' might be introduced, but it is not typically a core focus until A2. However, A1 learners can easily recognize it because it looks and means almost exactly the same as the English word 'uncertain'. At this stage, the primary goal is simple recognition in written texts or slow, clear speech. A teacher might use it when talking about the weather, a very common A1 topic. For example, pointing to a picture of cloudy skies and saying, 'Le temps est incertain.' Learners at this level should focus on understanding the basic meaning: 'not sure'. They do not need to worry about complex grammatical structures like the subjunctive yet. The focus is purely on associating the word with the concept of doubt or lack of a guarantee. Simple sentences like 'C'est incertain' (It is uncertain) are sufficient for A1 production. The cognate nature of the word provides a significant advantage, allowing beginners to deduce its meaning without direct translation, thereby boosting their confidence in reading simple French sentences.
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At the A2 level, 'incertain' becomes an active part of the learner's vocabulary. Learners are expected to use it to describe everyday situations where things are not fixed or guaranteed. The most common contexts at this level are discussing the weather ('une météo incertaine') and future plans ('mes vacances sont incertaines'). A key learning objective here is mastering the adjective agreement. A2 learners must practice adding the 'e' for feminine nouns and the 's' for plural nouns, and they must become aware of the pronunciation change between the masculine 'incertain' (nasal sound) and the feminine 'incertaine' (clear 'n' sound). They will also start using it with the verb 'être' to express personal doubt, such as 'Je suis incertain'. While they might not yet use the subjunctive mood, they should be able to form basic sentences expressing that an event might or might not happen. Understanding 'incertain' at this level helps learners move beyond simple statements of fact (e.g., 'It is raining') to expressing probability and possibility (e.g., 'The weather is uncertain, it might rain'), which is a crucial step in conversational fluency.
At the B1 level, learners are expected to handle more complex grammatical structures and express nuanced opinions. This is where the use of 'incertain' with the subjunctive mood becomes critical. B1 learners must learn and actively use the impersonal construction 'Il est incertain que + subjonctif' (It is uncertain that...). For example, 'Il est incertain qu'il vienne à la fête' (It is uncertain that he will come to the party). This demonstrates a significant leap in grammatical competence. Furthermore, B1 learners will use 'incertain' in broader contexts beyond weather and simple plans. They will apply it to discussions about the news, the economy, or social issues, using phrases like 'un avenir incertain' (an uncertain future) or 'une situation incertaine' (an uncertain situation). They will also learn to use the preposition 'de' correctly when expressing uncertainty about a specific thing: 'Je suis incertain de sa réaction' (I am uncertain of his reaction). At this stage, learners should also be able to distinguish 'incertain' from basic synonyms like 'douteux' or 'hésitant', choosing the most appropriate word for the context.
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At the B2 level, the use of 'incertain' becomes highly refined and natural. Learners are expected to understand and produce the word in abstract, professional, and academic contexts. They will encounter it frequently in French media, literature, and formal debates. A B2 learner can confidently discuss 'le caractère incertain des marchés financiers' (the uncertain nature of financial markets) or 'l'issue incertaine des élections' (the uncertain outcome of the elections). They will also use adverbs to modify the degree of uncertainty, employing phrases like 'hautement incertain' (highly uncertain) or 'totalement incertain' (completely uncertain) to add emphasis and precision to their arguments. In terms of grammar, the use of the subjunctive after 'il est incertain que' should be automatic and error-free. Furthermore, B2 learners will begin to appreciate the stylistic use of the word in written French, understanding how it contributes to tone and atmosphere. They will also be comfortable using related noun forms, such as 'l'incertitude' (uncertainty), seamlessly integrating both the adjective and the noun into complex, cohesive arguments and presentations.
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At the C1 level, learners possess an advanced, near-fluent command of the language. The word 'incertain' is used with complete ease and sophisticated nuance. C1 users will employ the word in complex literary or philosophical discussions, exploring the concept of uncertainty as a fundamental human condition. They will appreciate subtle collocations and idiomatic usages. For instance, they might describe a faint, flickering light as 'une lueur incertaine' or a hesitant, unconfident way of walking as 'une démarche incertaine'. At this level, the focus is not on grammar—which is assumed to be mastered—but on stylistic elegance and precision. C1 learners can effortlessly navigate the subtle differences between 'incertain', 'aléatoire', 'contingent', and 'équivoque', selecting the exact term that perfectly captures their intended meaning. They can also play with the word in rhetorical structures, using it to build suspense, express profound skepticism, or articulate complex hypothetical scenarios in both formal writing and high-level professional discourse.
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At the C2 level, the mastery of 'incertain' is indistinguishable from that of a highly educated native speaker. The word is fully integrated into the user's linguistic repertoire, deployed instinctively across all registers, from casual slang to the most elevated academic prose. C2 users understand the historical and cultural weight of the word within French literature and philosophy. They can use it to create deliberate ambiguity or poetic resonance. They are comfortable with rare or archaic usages if encountered in classic texts. Furthermore, they can manipulate the syntax surrounding the word for rhetorical effect, perhaps placing it before the noun for stylistic emphasis in a literary context (e.g., 'Dans cette incertaine clarté' - In this uncertain light), knowing exactly how this shifts the tone compared to the standard post-noun placement. At this pinnacle of language proficiency, 'incertain' is not just a vocabulary word; it is a flexible tool for precise, elegant, and powerful communication, reflecting a deep, intuitive understanding of the French language's rhythms and nuances.
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練習する 例文 メモとヒント

incertain 30秒で

  • Translates to 'uncertain', 'unsure', or 'doubtful'.
  • Used for unpredictable weather or unconfirmed plans.
  • Requires the subjunctive mood in 'Il est incertain que...'
  • Changes to 'incertaine' for feminine nouns.

The French adjective incertain is a highly versatile word that translates to 'uncertain', 'unsure', or 'doubtful' in English. It is a fundamental vocabulary word for learners at the CEFR A2 level, as it allows speakers to express doubt, unpredictability, and a lack of guarantee regarding future events, weather, or personal feelings. Understanding how to use 'incertain' effectively unlocks a new level of nuance in everyday conversations, moving beyond simple statements of fact into the realm of possibility and probability. The etymology of the word traces back to the Latin 'incertus', combining the negative prefix 'in-' with 'certus' (certain, fixed, resolved). This morphological structure is perfectly mirrored in English, making it a highly accessible cognate for English speakers. However, the true mastery of 'incertain' lies in understanding its varied applications across different contexts. When discussing the weather, 'un temps incertain' refers to unpredictable conditions, perhaps cloudy with a chance of rain. When referring to a person's demeanor, 'un regard incertain' describes a hesitant or unsure look. In the context of the future or plans, 'un avenir incertain' denotes a future that is not guaranteed or clear. This breadth of meaning makes it an indispensable tool for expressing the inherent unpredictability of life. To fully grasp its usage, learners must pay attention to the nouns it modifies and the prepositions that often accompany it. For instance, one might be 'incertain de' (uncertain about) something, which requires a specific grammatical structure. Furthermore, the word carries a subtle emotional weight; it can convey anxiety, hesitation, or simply a neutral acknowledgment of unknown variables. In literature and formal writing, 'incertain' is frequently employed to create an atmosphere of suspense or ambiguity. The beauty of this word lies in its ability to articulate the gray areas of human experience, where facts are scarce and possibilities are endless. By incorporating 'incertain' into your active vocabulary, you not only improve your descriptive capabilities but also your ability to engage in more complex, speculative discussions. Let us explore some specific examples and structures to solidify this understanding.

Weather Context
Used to describe unpredictable meteorological conditions, such as sudden changes in temperature or precipitation.

Le temps est très incertain aujourd'hui, prends un parapluie.

Future Plans
Describes events, schedules, or outcomes that are not yet finalized or guaranteed to happen.

Notre voyage en Espagne est encore incertain.

Personal Feelings
Refers to a state of hesitation, doubt, or lack of confidence in one's own decisions or knowledge.

Il a un sourire incertain, comme s'il cachait quelque chose.

L'issue du match reste totalement incertaine.

Je suis incertain quant à la décision à prendre.

Using the adjective incertain correctly in French requires a solid understanding of French grammar, specifically adjective placement and agreement. Like most descriptive adjectives in French, 'incertain' generally follows the noun it modifies. For example, 'un avenir incertain' (an uncertain future) or 'une météo incertaine' (uncertain weather). However, it can also be used as a predicate adjective following verbs of state such as 'être' (to be), 'sembler' (to seem), or 'paraître' (to appear). In these cases, the adjective must still agree in gender and number with the subject of the sentence. For instance, 'La date est incertaine' (The date is uncertain) or 'Les résultats sont incertains' (The results are uncertain). The feminine form is created by adding an 'e' to the end, resulting in 'incertaine', which changes the pronunciation slightly by making the final 'n' sound clearly articulated, unlike the nasal vowel sound in the masculine form. The plural forms simply add an 's': 'incertains' for masculine plural and 'incertaines' for feminine plural. Beyond simple agreement, 'incertain' is frequently used in specific grammatical constructions. One common structure is 'être incertain de + noun/infinitive', meaning 'to be uncertain of/about'. For example, 'Je suis incertain de sa réponse' (I am uncertain of his answer) or 'Il est incertain de pouvoir venir' (He is uncertain if he can come). Another important construction involves the use of the subjunctive mood. When 'incertain' is used in an impersonal expression like 'Il est incertain que...' (It is uncertain that...), it triggers the subjunctive in the following dependent clause because it expresses doubt or uncertainty. For example, 'Il est incertain qu'il vienne demain' (It is uncertain that he will come tomorrow). This is a crucial rule for intermediate and advanced learners to master, as it demonstrates a sophisticated command of French syntax. Furthermore, 'incertain' can be modified by adverbs of degree to express varying levels of doubt, such as 'très incertain' (very uncertain), 'assez incertain' (quite uncertain), or 'totalement incertain' (completely uncertain). Understanding these nuances allows speakers to convey precise shades of meaning. Let's look at some structured examples to illustrate these grammatical rules and usage patterns in everyday contexts.

Adjective Placement
Typically placed after the noun, following the standard French rule for descriptive adjectives.

C'est un projet aux contours incertains.

With the Subjunctive
The impersonal phrase 'Il est incertain que' requires the subjunctive mood in the subordinate clause.

Il est incertain que nous puissions terminer à temps.

Prepositional Use
Use 'de' when expressing uncertainty about a specific thing or action.

Elle est incertaine de ses sentiments.

Leur participation reste incertaine.

Un diagnostic incertain a été posé par le médecin.

The word incertain permeates various facets of French daily life, media, and professional environments. Because uncertainty is a universal human experience, the vocabulary used to describe it is naturally ubiquitous. In everyday conversation, you will frequently hear 'incertain' used in the context of weather forecasts. French meteorologists and everyday citizens alike use phrases like 'un temps incertain' to describe days where the sky is overcast and rain is a distinct possibility, but not a guarantee. This is particularly common in regions with highly variable climates, such as Brittany or Normandy. Beyond the weather, 'incertain' is a staple in discussions about plans and scheduling. When organizing a dinner party, a friend might say their attendance is 'incertaine' due to work commitments. In the realm of news and journalism, the word takes on a more serious tone. Economic reports frequently discuss 'un climat économique incertain' (an uncertain economic climate) or 'des marchés incertains' (uncertain markets) to describe periods of financial volatility or unpredictability. Political commentators use it to describe election outcomes ('une issue incertaine') or the future of specific policies. In sports journalism, the status of an injured player is often described as 'incertain' right up until the match begins. In literature and the arts, 'incertain' is used to evoke mood and atmosphere. A poet might write about 'la lumière incertaine de l'aube' (the uncertain light of dawn) to create a sense of transition and fragility. In psychological or philosophical contexts, it describes the human condition, our doubts, and our hesitations. For a language learner, recognizing these different contexts is vital. It helps you understand not just the literal meaning of the word, but its register and emotional resonance. Whether you are reading a formal newspaper article in Le Monde, listening to a casual conversation in a Parisian café, or watching a dramatic French film, 'incertain' will undoubtedly make an appearance. Familiarizing yourself with these common environments will significantly enhance your listening comprehension and your ability to use the word naturally.

Weather Forecasts
A very common context, used to describe unpredictable weather patterns.

La météo annonce un week-end incertain sur toute la côte.

Economic News
Used to describe volatile or unpredictable financial markets and economic conditions.

Les investisseurs craignent ce climat économique incertain.

Sports Reporting
Describes the doubtful status of a player's participation due to injury or illness.

Le capitaine de l'équipe est incertain pour le match de ce soir.

C'est une période de transition aux résultats incertains.

Il marchait d'un pas incertain dans l'obscurité.

While incertain is a relatively straightforward cognate for English speakers, there are several common pitfalls that learners encounter when incorporating it into their French vocabulary. The most frequent mistake involves gender and number agreement. Because the English word 'uncertain' never changes form, English speakers often forget to add the 'e' for feminine nouns or the 's' for plural nouns in French. Saying 'une météo incertain' instead of 'une météo incertaine' is a classic A2-level error. This mistake is particularly noticeable in spoken French because the addition of the feminine 'e' changes the pronunciation of the final syllable from a nasal vowel to a clear 'n' consonant sound. Another significant area of confusion is the grammatical structure that follows the impersonal expression 'Il est incertain que'. Many learners incorrectly use the indicative mood, saying 'Il est incertain qu'il vient' instead of the correct subjunctive form, 'Il est incertain qu'il vienne'. This happens because learners often associate the subjunctive only with expressions of emotion or necessity, forgetting that expressions of doubt and uncertainty also require it. Furthermore, learners sometimes confuse 'incertain' with similar but distinct words, such as 'douteux' (doubtful) or 'hésitant' (hesitant). While 'incertain' describes a lack of certainty or predictability about a fact or event, 'douteux' often implies suspicion or a lack of credibility (e.g., 'une excuse douteuse' - a doubtful/suspicious excuse). 'Hésitant' is used specifically for people who are pausing or delaying action due to uncertainty (e.g., 'Il est hésitant' - He is hesitant). Using 'incertain' when 'hésitant' is more appropriate can sound unnatural. Finally, learners sometimes struggle with the preposition that follows 'incertain' when expressing uncertainty about something. The correct preposition is 'de' (e.g., 'incertain de son choix'), but learners might mistakenly use 'sur' or 'à propos de', directly translating from English 'uncertain about'. By being mindful of these common errors—agreement, subjunctive usage, vocabulary nuances, and prepositions—learners can significantly improve the accuracy and naturalness of their French.

Agreement Errors
Failing to match the adjective's gender and number with the noun it modifies.

Incorrect: Une victoire incertain. Correct: Une victoire incertaine.

Subjunctive Neglect
Using the indicative instead of the subjunctive after 'Il est incertain que'.

Incorrect: Il est incertain qu'elle est là. Correct: Il est incertain qu'elle soit là.

Wrong Preposition
Using 'sur' or 'pour' instead of 'de' when saying 'uncertain about'.

Incorrect: Je suis incertain sur ça. Correct: Je suis incertain de cela.

Ne confondez pas incertain (uncertain fact) et douteux (suspicious).

Assurez-vous de bien prononcer le 'n' final dans la forme féminine incertaine.

To truly enrich your French vocabulary, it is essential to understand not just the word incertain, but also its synonyms and related terms. This allows for greater precision and variety in your expression. A very common synonym is 'douteux' (doubtful). While they overlap, 'douteux' often carries a slightly more negative connotation, implying that something is not only uncertain but perhaps suspicious or unlikely to be true or successful. For example, 'un résultat douteux' suggests the result might be invalid, whereas 'un résultat incertain' simply means it is not yet known. Another related word is 'aléatoire' (random, unpredictable). This is often used in scientific, mathematical, or highly formal contexts to describe something governed by chance, such as 'un processus aléatoire' (a random process). When describing a person's state of mind, 'hésitant' (hesitant) or 'indécis' (undecided) are excellent alternatives. If someone is 'incertain' about what to order at a restaurant, you could also say they are 'indécis'. 'Précaire' (precarious) is another powerful word, often used to describe situations that are uncertain because they are unstable or dangerous, such as 'une situation financière précaire' (a precarious financial situation). For weather, instead of 'incertain', you might hear 'changeant' (changeable) or 'instable' (unstable). Understanding these nuances allows you to choose the exact word for the specific flavor of uncertainty you wish to convey. Conversely, knowing the antonyms is equally important. The most direct antonym is, of course, 'certain' (certain, sure). Other antonyms include 'sûr' (sure, safe), 'indubitable' (unquestionable), 'assuré' (assured), and 'évident' (obvious). By mapping out this network of related vocabulary, you build a more robust and flexible linguistic repertoire, enabling you to navigate complex conversations with confidence and subtlety. Let's examine some of these synonyms in context to highlight their specific uses.

Douteux (Doubtful/Suspicious)
Implies a higher degree of skepticism or suspicion than 'incertain'.

La provenance de ce tableau est douteuse.

Indécis (Undecided)
Specifically used for people who cannot make a choice or decision.

Il reste indécis face à ces deux offres d'emploi.

Précaire (Precarious)
Describes an uncertainty rooted in instability or vulnerability.

Leur équilibre financier est très précaire.

Le temps est instable aujourd'hui, tout comme hier.

C'est un événement totalement aléatoire.

How Formal Is It?

難易度

知っておくべき文法

Adjective agreement (gender and number).

The Subjunctive mood (triggered by 'Il est incertain que').

Prepositions with adjectives (être incertain de).

Impersonal expressions (Il est + adjectif + que).

Adverbial modification (très incertain, totalement incertain).

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レベル別の例文

1

Le temps est incertain.

The weather is uncertain.

Used as a simple predicate adjective with 'être'.

2

C'est incertain.

It is uncertain.

Used with the neutral pronoun 'ce' (c').

3

Mon voyage est incertain.

My trip is uncertain.

Agrees with the masculine singular noun 'voyage'.

4

La date est incertaine.

The date is uncertain.

Notice the 'e' added for the feminine noun 'date'.

5

Il est incertain.

He is uncertain.

Describes a person's state.

6

Elle est incertaine.

She is uncertain.

Feminine agreement for 'Elle'.

7

Le futur est incertain.

The future is uncertain.

Basic descriptive sentence.

8

C'est un jour incertain.

It is an uncertain day.

Adjective placed after the noun.

1

La météo de demain est très incertaine.

Tomorrow's weather forecast is very uncertain.

Feminine agreement with 'météo' and modified by 'très'.

2

Je suis incertain de mes plans pour ce week-end.

I am uncertain about my plans for this weekend.

Use of 'incertain de' to express doubt about something.

3

Le résultat du match reste incertain.

The result of the match remains uncertain.

Used with the verb 'rester' (to remain).

4

Nous avons un avenir incertain devant nous.

We have an uncertain future ahead of us.

Standard placement after the noun 'avenir'.

5

Sa réponse était un peu incertaine.

His/Her answer was a bit uncertain.

Feminine agreement with 'réponse', modified by 'un peu'.

6

Les horaires des trains sont incertains aujourd'hui.

The train schedules are uncertain today.

Plural agreement 'incertains' for 'horaires'.

7

C'est une période incertaine pour trouver du travail.

It is an uncertain period to find work.

Feminine agreement with 'période'.

8

Il marche d'un pas incertain.

He walks with an uncertain step.

Used to describe a physical action (hesitant step).

1

Il est incertain qu'elle réussisse son examen.

It is uncertain that she will pass her exam.

Triggers the subjunctive 'réussisse' after 'Il est incertain que'.

2

Le climat économique actuel est particulièrement incertain.

The current economic climate is particularly uncertain.

Used in a broader, more abstract context (economy).

3

Je reste incertain quant à la meilleure décision à prendre.

I remain uncertain as to the best decision to make.

Use of the formal phrase 'quant à' (as for/regarding).

4

L'issue des négociations est encore totalement incertaine.

The outcome of the negotiations is still completely uncertain.

Feminine agreement with 'issue' and modified by 'totalement'.

5

Malgré ses promesses, son soutien me paraît incertain.

Despite his promises, his support seems uncertain to me.

Used with the verb 'paraître' (to seem).

6

C'est un projet ambitieux, mais aux contours incertains.

It's an ambitious project, but with uncertain outlines/parameters.

Plural agreement; metaphorical use of 'contours'.

7

La lumière incertaine de l'aube éclairait la chambre.

The uncertain light of dawn illuminated the room.

Poetic/descriptive use referring to faint or changing light.

8

Il est incertain de pouvoir nous rejoindre ce soir.

He is uncertain if he can join us tonight.

'Incertain de' followed by an infinitive verb.

1

Face à cette situation inédite, l'avenir de l'entreprise demeure hautement incertain.

Faced with this unprecedented situation, the company's future remains highly uncertain.

Formal vocabulary ('inédite', 'demeure', 'hautement').

2

Bien qu'il soit incertain que le projet aboutisse, nous devons essayer.

Although it is uncertain that the project will succeed, we must try.

Subjunctive used twice: after 'Bien que' and 'incertain que'.

3

Les sondages prédisent une élection à l'issue incertaine.

Polls predict an election with an uncertain outcome.

Common journalistic phrasing.

4

Il a formulé des hypothèses basées sur des données incertaines.

He formulated hypotheses based on uncertain data.

Feminine plural agreement with 'données'.

5

L'incertaine frontière entre le génie et la folie est souvent explorée en littérature.

The uncertain border between genius and madness is often explored in literature.

Stylistic placement of the adjective before the noun for emphasis.

6

Dans ce climat géopolitique incertain, la prudence est de mise.

In this uncertain geopolitical climate, caution is advised.

Advanced vocabulary context (geopolitics).

7

Son diagnostic reste incertain, nécessitant des examens complémentaires.

His diagnosis remains uncertain, requiring further examinations.

Medical context usage.

8

C'est avec un sourire incertain qu'elle a accepté la proposition.

It was with an uncertain smile that she accepted the proposal.

Describing a complex facial expression.

1

L'auteur joue habilement sur le caractère incertain de la mémoire du narrateur.

The author skillfully plays on the uncertain nature of the narrator's memory.

Literary analysis context; use of 'caractère incertain'.

2

Toute entreprise humaine est par nature vouée à un destin incertain.

Every human endeavor is by nature doomed to an uncertain fate.

Philosophical phrasing and advanced vocabulary ('vouée à').

3

Il est d'autant plus incertain qu'il faille intervenir que les risques sont immenses.

It is all the more uncertain whether intervention is necessary given that the risks are immense.

Complex syntax: 'd'autant plus... que' + subjunctive 'faille'.

4

La validité de cette théorie repose sur des prémisses pour le moins incertaines.

The validity of this theory rests on premises that are, to say the least, uncertain.

Academic critique context; 'pour le moins' (to say the least).

5

Elle avançait dans les ténèbres avec une démarche incertaine et chancelante.

She advanced into the darkness with an uncertain and unsteady gait.

Rich descriptive vocabulary ('ténèbres', 'chancelante').

6

Le statut juridique de ces travailleurs ubérisés demeure juridiquement incertain.

The legal status of these gig-economy workers remains legally uncertain.

Contemporary socio-economic context ('ubérisés').

7

C'est dans cette zone grise, aux contours incertains, que se situe le débat éthique.

It is in this gray area, with its uncertain outlines, that the ethical debate lies.

Metaphorical use of 'contours incertains' in an abstract argument.

8

L'authenticité de ce manuscrit du XIIe siècle est jugée hautement incertaine par les experts.

The authenticity of this 12th-century manuscript is deemed highly uncertain by experts.

Passive voice construction in an academic context.

1

Plongé dans une époque aux repères incertains, l'individu moderne cherche désespérément un ancrage.

Plunged into an era of uncertain landmarks, the modern individual desperately seeks an anchor.

Highly literary and sociological phrasing.

2

Il serait pour le moins hasardeux, voire totalement incertain, de tabler sur une reprise économique fulgurante.

It would be risky to say the least, if not completely uncertain, to bank on a dazzling economic recovery.

Nuanced distinction between 'hasardeux' and 'incertain'.

3

L'incertaine lueur de la bougie projetait des ombres fantasmagoriques sur les murs décrépits.

The uncertain glow of the candle cast phantasmagorical shadows on the decrepit walls.

Poetic inversion (adjective before noun) for atmospheric effect.

4

Que la vérité soit absolue ou contingente, son appréhension par l'esprit humain reste fondamentalement incertaine.

Whether truth is absolute or contingent, its apprehension by the human mind remains fundamentally uncertain.

Epistemological context; complex sentence structure.

5

Face à l'injonction paradoxale d'agir dans un cadre normatif incertain, le décideur se trouve paralysé.

Faced with the paradoxical injunction to act within an uncertain normative framework, the decision-maker finds himself paralyzed.

Advanced professional/bureaucratic jargon.

6

C'est précisément ce caractère ontologiquement incertain de l'existence qui donne son prix à chaque instant.

It is precisely this ontologically uncertain character of existence that gives value to every moment.

Existential philosophy context ('ontologiquement').

7

L'issue de ce litige tentaculaire est d'une incertitude telle que tout pronostic s'avère incertain.

The outcome of this sprawling litigation is of such uncertainty that any prognosis proves uncertain.

Stylistic repetition of the root word (incertitude/incertain) for emphasis.

8

Il s'aventura sur le terrain glissant des conjectures, conscient que ses conclusions demeureraient à jamais incertaines.

He ventured onto the slippery slope of conjecture, aware that his conclusions would forever remain uncertain.

Use of conditional ('demeureraient') to express future uncertainty from a past perspective.

よく使う組み合わせ

temps incertain
avenir incertain
issue incertaine
climat incertain
résultat incertain
pas incertain
sourire incertain
regard incertain
victoire incertaine
destin incertain

よく使うフレーズ

être incertain de
il est incertain que
rester incertain
demeurer incertain
laisser dans l'incertain
un temps incertain
des jours incertains
une issue incertaine
un avenir incertain
d'un pas incertain

よく混同される語

incertain vs douteux

incertain vs hésitant

incertain vs aléatoire

慣用句と表現

"nager dans l'incertain"
"laisser planer l'incertitude"
"être dans le flou"
"ne pas savoir sur quel pied danser"
"être entre deux chaises"
"être dans l'expectative"
"jouer à quitte ou double"
"tirer des plans sur la comète"
"être en suspens"
"le hasard fait bien les choses"

間違えやすい

incertain vs

incertain vs

incertain vs

incertain vs

incertain vs

文型パターン

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使い方

nuances

While it means 'uncertain', it doesn't necessarily mean 'bad'. An uncertain outcome can still be positive.

formality

Appropriate for all levels of formality.

regionalisms

Universally understood across the Francophone world.

よくある間違い
  • Forgetting to add 'e' for feminine nouns (e.g., 'une météo incertain').
  • Using the indicative after 'Il est incertain que' (e.g., 'Il est incertain qu'il vient').
  • Using the preposition 'sur' instead of 'de' (e.g., 'incertain sur ça').
  • Pronouncing the feminine 'incertaine' with a nasal ending.
  • Confusing 'incertain' with 'douteux' when no suspicion is intended.

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The Subjunctive Trigger

Always remember that 'Il est incertain que' is a trigger for the subjunctive mood. This is a classic trap for learners. Write down 'Il est incertain qu'il soit...' on a sticky note. Practice it until it feels natural.

Mind the 'N'

The pronunciation shift between masculine and feminine is crucial. Masculine 'incertain' ends in a nasal sound. Feminine 'incertaine' ends with a hard 'N' sound. Exaggerate the 'N' when practicing the feminine form.

Learn the Noun

Don't just learn the adjective; learn the noun 'l'incertitude' at the same time. They are used in very similar contexts. If you can't remember the adjective agreement, sometimes you can rephrase using the noun: 'Il y a de l'incertitude'.

Weather Talk

Use 'incertain' to sound more native when talking about the weather. Instead of just saying 'il va peut-être pleuvoir' (it might rain), say 'le temps est incertain'. It sounds much more sophisticated and natural.

Incertain DE

Lock in the preposition 'de'. English speakers want to say 'incertain sur' (uncertain about). Resist this urge. It is always 'incertain de' when linking to a noun or infinitive verb.

Avenir Incertain

Memorize the chunk 'un avenir incertain' (an uncertain future). It is one of the most common collocations for this word. Using words in pre-packaged chunks makes you speak faster and more fluently.

Avoid Douteux

Be careful not to overuse 'douteux' when you mean 'incertain'. Remember that 'douteux' sounds suspicious. If you just mean you don't know the outcome, stick with 'incertain'.

Formal Alternatives

In formal writing, pair 'incertain' with verbs like 'demeurer' or 'rester' instead of just 'être'. 'La situation demeure incertaine' sounds much more professional than 'La situation est incertaine'.

News Keywords

When listening to French news, 'incertain' is a signal word. It usually means the reporter is transitioning from facts to speculation or discussing risks. Pay close attention to the sentences that follow it.

Trust the English

Because it's a perfect cognate, trust your intuition on its basic meaning. If you would use 'uncertain' in English, there's a 95% chance 'incertain' works perfectly in French in the same context.

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記憶術

Think of 'IN-CERTAIN' as exactly the same as English 'UN-CERTAIN'. The prefix 'in-' in French often means 'un-' or 'not' in English.

語源

Latin

文化的な背景

Neutral. Suitable for both casual conversation and highly formal or academic writing.

The word has been a staple of French literature since the Middle Ages, often used to describe the fickle nature of fate or fortune.

No major regional differences in meaning, though coastal regions (like Brittany) might use it more frequently regarding their highly changeable weather.

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実際の使用場面

会話のきっかけ

"Penses-tu que la météo sera incertaine ce week-end ?"

"Ton avenir professionnel te semble-t-il incertain en ce moment ?"

"Comment gères-tu les situations incertaines dans la vie ?"

"Est-il incertain que nous puissions voyager l'année prochaine ?"

"Pourquoi le résultat de cette élection est-il si incertain ?"

日記のテーマ

Décrivez une période de votre vie où tout semblait incertain. Comment avez-vous réagi ?

Écrivez sur un projet futur qui est encore incertain. Quelles sont vos craintes et vos espoirs ?

Comment la météo incertaine affecte-t-elle votre humeur ?

Pensez-vous qu'il est préférable d'avoir une vie planifiée ou une vie avec une part d'incertain ?

Racontez une histoire où l'issue d'un événement était totalement incertaine jusqu'à la dernière minute.

よくある質問

10 問

Yes, it does. Like most French adjectives, it must agree with the noun it modifies. For masculine nouns, it remains 'incertain'. For feminine nouns, you must add an 'e' to make it 'incertaine'. This also changes the pronunciation slightly. The plural forms are 'incertains' and 'incertaines'.

Yes, but only in specific constructions. If you use the impersonal phrase 'Il est incertain que...' (It is uncertain that...), the following verb must be in the subjunctive mood. This is because the phrase expresses doubt. For example: 'Il est incertain qu'il vienne'.

When you want to say you are uncertain 'about' or 'of' something, use the preposition 'de'. For example, 'Je suis incertain de ma décision' (I am uncertain of my decision). Do not use 'sur' or 'à propos de' in this specific adjective construction. It can also be followed by an infinitive verb: 'incertain de pouvoir venir'.

Yes, absolutely. You can use it to describe someone who is feeling doubtful or unsure. For example, 'Il est incertain face à son avenir' (He is uncertain facing his future). You can also describe their physical actions, like 'un sourire incertain' (an uncertain smile).

The noun form is 'l'incertitude', which translates to 'uncertainty'. It is a feminine noun. You would use it in phrases like 'vivre dans l'incertitude' (to live in uncertainty). It is a very common and useful related word to know.

No, it is a neutral word that fits into any register. You can use it in a casual conversation with friends about the weather ('le temps est incertain'). You can also use it in a highly formal academic paper or business report. Its versatility is one of its strengths.

While both relate to doubt, 'douteux' often carries a negative connotation of suspicion. A 'résultat incertain' is just a result we don't know yet. A 'résultat douteux' is a result we suspect might be false or manipulated. 'Douteux' questions the validity, while 'incertain' questions the predictability.

As a descriptive adjective, 'incertain' typically follows the noun it modifies. For example, 'un avenir incertain' or 'une météo incertaine'. In highly literary or poetic French, you might occasionally see it before the noun ('une incertaine lueur'), but in everyday usage, it goes after.

In the masculine form 'incertain', the final syllable is a nasal vowel /ɛ̃/, and the 'n' is not pronounced as a consonant. In the feminine form 'incertaine', the addition of the 'e' forces you to pronounce the 'n' clearly. It sounds similar to the English word 'ten'.

Yes, you can modify it to express different degrees of uncertainty. Common adverbs used with it include 'très' (very), 'totalement' (completely), 'hautement' (highly - formal), and 'un peu' (a little). For example, 'L'issue est totalement incertaine'.

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