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A2 noun 17 min read

delírio

Practice it Examples Notes & Tips delírio in 30 Seconds

Explanation delírio in your Level:

At the A1 level, you should know that 'delírio' is a word for when someone is very, very excited or acting a bit 'crazy' because they are happy or sick. Think of it like a 'super-excitement'. You might hear it in a football game when everyone is screaming. It is a masculine noun, so we say 'o delírio'. You don't need to use it often, but if you see it, know it means something is very intense and not calm. It is like the English word 'delirium', but used more for fun things too. Just remember: delírio = big energy, sometimes good, sometimes bad. It is a very strong word, so use it only when something is truly amazing or very strange. For example, if you see a very beautiful carnival, you can say 'Que delírio!' to show you are impressed by how wild and colorful it is.

At the A2 level, you can start using 'delírio' to describe situations that are unrealistic or very exciting. You should understand that it can be used for a medical state (like having a fever) or a social state (like a crowd going wild). You will often see it with the verb 'entrar em' (to enter into). For example: 'A torcida entrou em delírio' (The fans went wild). You should also know that 'delírio' is different from 'sonho' (dream). A 'delírio' is more intense and usually happens when you are awake but your mind is wandering. It is a good word to use when you want to emphasize that an idea is impossible. If someone says they will fly to the moon tomorrow, you can say 'Isso é um delírio!'. This shows you have a better grasp of Portuguese emotions and reactions.

At the B1 level, you should be comfortable using 'delírio' in various contexts, including more abstract ones. You should know common phrases like 'delírio de grandeza' (delusions of grandeur) to describe someone who thinks they are a king or a hero. You should also understand the difference between 'delírio' (the state of mind) and 'delirante' (the adjective for the person or the idea). At this level, you can use 'delírio' to critique things, like a movie plot or a political promise that makes no sense. You should also be aware of the plural form 'delírios', which refers to the specific crazy thoughts someone has. For instance, 'Os delírios dele eram sobre alienígenas' (His delusions were about aliens). This allows you to discuss more complex topics like mental health or artistic styles with more precision.

At the B2 level, you should understand the nuance between 'delírio' and its synonyms like 'alucinação' or 'desvario'. You should be able to recognize 'delírio' as a literary device in books and song lyrics. You can use it to describe an aesthetic, such as a 'delírio visual' in a painting. You should also be able to use it ironically in social situations. For example, in a debate, calling an opponent's argument a 'delírio' is a common rhetorical move. You should also understand the medical distinction: that 'delírio' is a cognitive error (believing something false), while 'alucinação' is a sensory error (seeing something that isn't there). This level of mastery allows you to use the word in professional, academic, or highly social settings with confidence and correct tone.

At the C1 level, you should have a deep appreciation for the historical and cultural weight of 'delírio'. You can use it to discuss the 'delírio coletivo' of a society or a specific historical moment. You should be able to use it in complex sentence structures, such as 'beirando o delírio' (bordering on delirium) or 'em pleno delírio' (in the middle of delirium). You should also be familiar with how the word is used in classical Portuguese literature, where it often represents a character's internal struggle or the breakdown of social order. Your use of the word should reflect an understanding of its psychological depth, moving beyond simple 'excitement' to a sophisticated analysis of human irrationality. You can also use it to describe complex architectural or musical structures that defy conventional logic.

At the C2 level, 'delírio' is a tool for philosophical and high-level linguistic expression. You can use it to discuss the boundaries of reality and perception in a philosophical sense. You understand the etymological roots (from Latin 'delirare', to go out of the furrow) and can use this knowledge to make puns or deep metaphors. You can write essays about the 'delírios' of modern technology or the 'delírio' as a form of creative liberation. You are perfectly capable of distinguishing between the clinical, the colloquial, the poetic, and the ironic uses of the word in any given context. Your mastery is such that you can use 'delírio' to evoke a specific mood in your writing, whether it is one of chaotic joy or profound psychological distress, with the same ease as a native speaker.

Practice it Examples Notes & Tips

delírio in 30 Seconds

Delírio is a Portuguese noun meaning delirium or delusion, covering both medical confusion and irrational beliefs.
It is frequently used hyperbolically to describe intense crowd excitement or 'going wild' at events like concerts.
Commonly paired with the verb 'entrar em' to describe a sudden shift into a state of frenzy or confusion.
Distinguish it from 'ilusão' (illusion); delírio is a deeper mental break, while ilusão is often a sensory mistake.

The word delírio is a fascinating pillar of the Portuguese vocabulary, serving as a bridge between clinical precision and poetic hyperbole. At its core, it refers to a state of mental disturbance, but its application in daily life is far more expansive than a simple medical diagnosis. For an English speaker, the most direct translation is 'delirium,' yet 'delírio' often stretches into the territory of 'delusion,' 'frenzy,' or even 'ecstasy.' When you encounter this word in a Portuguese-speaking environment, you must first determine the temperature of the conversation. Is it a somber medical discussion, or is it a vibrant critique of a new art exhibition? In a hospital setting, delírio describes the acute confusion caused by a high fever, intoxication, or neurological issues. However, step into a football stadium or a concert hall, and you will hear the word used to describe the crowd's reaction. When a last-minute goal is scored, the stadium enters a state of delírio—a collective, wild enthusiasm that borders on the irrational. This duality makes the word incredibly versatile. It is also used to describe ideas that are perceived as impossible or nonsensical. If a friend suggests a plan that seems completely detached from reality, you might call it a delírio, suggesting they are 'hallucinating' or 'dreaming' in a way that is not grounded in truth. This nuanced usage highlights the Portuguese tendency to use medical or extreme psychological terms to describe everyday emotional peaks. To master delírio, one must understand that it represents a departure from the 'norma' or the straight line of reason. Whether that departure is caused by a virus, a drug, or a moment of pure joy, the word captures that precise moment when the mind loses its usual grip on the tangible world.

Clinical Perspective: In psychiatry and medicine, it denotes a symptomatic state of confusion, often temporary and reversible, characterized by hallucinations or incoherent thought patterns.

O paciente apresentava sinais claros de delírio após a cirurgia prolongada.

Colloquial Hyperbole: Used to describe excessive excitement, passion, or an idea that is considered absurdly unrealistic by others.

A plateia entrou em delírio quando o cantor subiu ao palco.

Furthermore, the word carries a literary weight. In the works of great Portuguese-language writers like Machado de Assis, delírio is used to explore the boundaries of the human soul and the fragility of sanity. It is not just a 'sickness' but a state of being where the hidden truths of the subconscious might emerge. When you use this word, you are tapping into a deep history of exploring the irrational. It is also important to distinguish it from 'ilusão' (illusion). While an 'ilusão' is a deception of the senses or a false hope, a 'delírio' is a more profound internal disruption of the mind's logic. If you see a mirage in the desert, it is an 'ilusão.' If you believe you are the King of the Desert and start giving orders to the sand, that is a delírio. This distinction is vital for learners who want to speak Portuguese with precision and emotional intelligence. In summary, the word is a powerful tool for describing anything that breaks the boundaries of calm, rational existence, whether for better or for worse.

Achar que vamos ganhar na loteria sem jogar é um completo delírio.

Artistic Context: In art criticism, it can refer to a surreal or dream-like quality in a piece of work that defies traditional logic.

O filme é um delírio visual de cores e formas abstratas.

Ele vive em um mundo de delírio constante, ignorando a realidade.

Integrating delírio into your Portuguese repertoire requires an understanding of its syntactic environment. As a noun, it usually functions as the object of a verb or follows a preposition. One of the most common ways to use it is with the verb 'entrar em' (to enter into). This construction is perfect for describing a sudden shift in state, whether it is a patient entering a medical delirium or a crowd entering a state of wild excitement. For example, 'A multidão entrou em delírio' (The crowd went wild). Another frequent partner for this word is the verb 'ter' (to have). When someone is experiencing hallucinations or irrational thoughts, we say they are 'tendo delírios.' This is particularly common in medical or psychological contexts. You might hear a doctor ask, 'O paciente tem tido delírios?' (Has the patient been having delusions/delirium?). It is also very common to use 'delírio' with the preposition 'de,' followed by another noun to specify the type of delirium. The most famous of these is 'delírio de grandeza' (delusions of grandeur), used to describe someone who thinks they are much more important or powerful than they actually are. Another example is 'delírio de perseguição' (persecutory delusion), which is the feeling that one is being followed or targeted. In more casual conversation, 'delírio' can act as a predicate nominative to label an idea or situation. 'Isso é um delírio!' (That is crazy/absurd!) is a powerful way to dismiss a suggestion that you find completely unrealistic. Notice how the word carries more weight than 'loucura' (madness). While 'loucura' can be playful, 'delírio' often implies a more profound disconnection from what is real. When writing, you can also use 'delírio' to describe an aesthetic. A book might be described as a 'delírio febril' (fever dream), suggesting a narrative that is intense, confusing, and perhaps slightly disturbing. This variety of uses shows that while the core meaning remains 'a break from reality,' the emotional and situational context changes how that break is perceived by the listener.

With 'Entrar em': Describes a transition into a state of frenzy or confusion.

Ao ouvir a notícia da vitória, o povo entrou em delírio nas ruas.

Specific Types: Using 'de' to categorize the nature of the irrational thought.

O vilão do filme sofria de um grave delírio de grandeza.

When you want to describe someone who is currently in this state, you can use the related adjective 'delirante.' However, the noun 'delírio' remains the most common way to name the phenomenon itself. It is also worth noting that 'delírio' is often used in the plural—'delírios'—to refer to the specific hallucinations or incoherent thoughts themselves, rather than the general state. For instance, 'Os seus delírios envolviam viagens espaciais' (His delusions involved space travel). This plural usage is very common when discussing the content of someone's imagination or a psychiatric condition. In contrast, the singular 'delírio' is often used for the collective state of a crowd or the general absurdity of a concept. By paying attention to whether the word is singular or plural, you can gain a deeper insight into whether the speaker is focusing on the 'state of mind' or the 'specific thoughts' occurring within that state. This level of detail is what separates a basic learner from a truly fluent speaker of Portuguese.

Não dê ouvidos a ele; são apenas delírios da febre.

Dismissive Usage: Used to label an idea as completely out of touch with reality.

A ideia de colonizar Marte em dois anos é um delírio tecnológico.

O espetáculo foi um delírio de luzes e sons que hipnotizou a todos.

In the real world, you will encounter delírio in a diverse array of settings, each giving the word a slightly different flavor. One of the most common places to hear it is in the news, particularly in the cultural and sports sections. Journalists love the word because it conveys a sense of high-energy chaos that 'alegria' (joy) or 'entusiasmo' (enthusiasm) simply cannot match. If a famous pop star arrives at an airport and thousands of fans are screaming and pushing to see them, the headline will almost certainly include the word delírio. It captures the frantic, almost irrational nature of fan culture. You will also hear it frequently in political commentary. In the heated world of politics, opponents often describe each other's proposals as delírios. This is a strategic choice of words; it suggests that the other person isn't just wrong, but that they have lost touch with reality entirely. It is a more sophisticated way of saying someone is 'crazy.' In a more literal and serious setting, you will hear it in hospitals and clinics. Doctors and nurses use it to describe a specific medical condition (delirium), often when talking to the families of elderly patients or those in intensive care. In this context, the word is clinical and serious, devoid of the excitement found in a stadium. Another fascinating place where delírio appears is in the lyrics of Samba and MPB (Música Popular Brasileira). Brazilian music often explores themes of passion so intense it feels like a sickness or a dream. A songwriter might describe their love as a delírio, meaning it is an all-consuming, logic-defying state of mind. Finally, you'll hear it in casual conversations among friends when discussing movies, books, or even conspiracy theories. If a movie has a plot that makes no sense, a friend might say, 'Aquele roteiro era um delírio total' (That script was a total hallucination). By listening for delírio in these different contexts, you begin to see how the Portuguese language uses the concept of 'mental wandering' to describe the most intense and absurd parts of the human experience.

News & Media: Used to describe mass excitement or the chaotic reception of celebrities and athletes.

O gol no último minuto levou a torcida ao delírio.

Political Discourse: A tool for delegitimizing an opponent's ideas by calling them irrational or detached from reality.

O projeto foi criticado como um delírio econômico sem fundamentos.

In summary, delírio is everywhere. It is in the hospital room, the football stadium, the political debate, and the love song. It is a word that captures the high-stakes moments of life where reality becomes blurred. For a learner, hearing this word is a signal that the situation is intense. It is rarely used for something mundane. If someone uses the word 'delírio,' they are talking about something that has crossed a line—whether that line is the boundary of health, the boundary of reason, or the boundary of normal emotional expression. Understanding this 'boundary-crossing' nature of the word will help you interpret the speaker's intent much more accurately. Whether it's the 'delírio' of a carnival parade or the 'delírio' of a feverish child, the word always points to a mind that is, for a moment, somewhere else.

As canções de ninar tentavam acalmar o seu delírio noturno.

Music & Poetry: A metaphor for intense love, passion, or creative inspiration that feels like a dream.

Viver sem você é um delírio do qual não quero acordar.

O Carnaval do Rio de Janeiro é um delírio de cores e ritmos.

One of the most frequent mistakes English speakers make when using delírio is confusing it with the English word 'delusion' in all contexts. While 'delírio' can mean 'delusion' (a fixed false belief), in English, 'delirium' specifically refers to a medical state of confusion. In Portuguese, delírio covers both. However, English speakers often try to use the Portuguese word 'delusão,' which is a rare, archaic term and usually considered a 'false friend' or an anglicism. If you want to say someone is 'delusional' in a non-medical, psychological sense, delírio is the correct word, but you might also use 'ilusão' (illusion) if you mean they are simply mistaken or naive. Another common error is using 'delírio' when you simply mean 'crazy' in a lighthearted way. While you can use 'delírio' hyperbolically, 'loucura' is much more common for everyday 'craziness.' For example, if a friend wears a funny hat, calling it a 'delírio' might sound too intense or even insulting, as if you are suggesting they are having a mental breakdown. 'Loucura' would be the safer, more colloquial choice. Another grammatical trap is the gender of the word. Because it ends in '-o,' many learners correctly identify it as masculine, but they often forget to change the accompanying adjectives. It is 'um delírio total,' not 'uma delírio total.' Furthermore, be careful with the plural. 'Delírios' often refers to the specific hallucinations or thoughts, while the singular 'delírio' refers to the state. Mixing these up can make your sentence sound slightly 'off' to a native ear. For example, 'Ele tem um delírio' sounds like he has one specific crazy idea, whereas 'Ele está em delírio' means he is currently in a state of confusion. Finally, learners often struggle with the preposition that follows 'delírio.' It is almost always 'de.' 'Delírio de grandeza,' 'delírio de perseguição,' 'delírio de ciúme.' Using 'sobre' or 'com' in these specific psychiatric terms is a common mistake. Mastering these small details will prevent you from sounding like you are just translating from English and will help you sound like a true Lusophone.

False Friend Alert: Avoid using 'delusão'. Use 'delírio' for both medical delirium and psychological delusions.

Dizer que ele tem uma delusão é errado; o correto é dizer que ele tem um delírio.

Over-Intensity: Don't use 'delírio' for minor silly things. Use 'loucura' or 'besteira' instead.

Aquela piada foi uma loucura, não um delírio.

Another mistake involves the verb 'delirar.' While 'delírio' is the noun, 'delirar' is the verb. English speakers sometimes try to use 'estar delirando' for 'to be kidding.' In Portuguese, 'Você está delirando!' is a very strong statement. It means 'You are out of your mind!' or 'You are hallucinating!' It is much stronger than 'You are joking!' (Você está brincando!). Using 'delirar' in a lighthearted context can sometimes lead to misunderstandings, as the listener might think you are being genuinely concerned about their mental health or being very aggressive in your disagreement. Therefore, use 'delírio' and its derivatives with an awareness of their emotional weight. They are 'high-octane' words that should be reserved for situations that truly warrant them. By avoiding these common pitfalls, you can use delírio to add a layer of sophistication and intensity to your Portuguese that will impress native speakers.

Você acha que vai ganhar sem treinar? Você está delirando!

Preposition Errors: Always use 'de' when specifying the type of delusion.

Ele sofre de delírio de perseguição, não delírio sobre perseguição.

O sucesso repentino foi um delírio passageiro para o jovem artista.

To truly master the concept of delírio, it is helpful to compare it with its synonyms and near-synonyms in Portuguese. The most common alternative is alucinação (hallucination). While delírio is a disturbance in the 'content' of thought (believing something that isn't true), alucinação is a disturbance in 'perception' (seeing or hearing something that isn't there). In a medical context, they often go together, but they are technically different. Another close relative is insanidade (insanity). This is a broader, more legal or permanent term, whereas delírio often implies a temporary or specific episode of irrationality. If you want to describe a state of wild excitement, you might use frenesi (frenzy) or euforia (euphoria). Euforia is generally positive and less 'chaotic' than delírio. If a crowd is happy, they are in 'euforia'; if they are so happy they are losing control, they are in delírio. For describing an absurd idea, you could use absurdo (absurdity) or desvario (wildness/raving). Desvario is a beautiful, slightly more literary word that captures the sense of a mind wandering away from the path of reason. Another interesting alternative is utopia. While a delírio is often seen as negative or crazy, a utopia is a positive, though perhaps impossible, dream. If you call someone's plan a 'utopia,' you are being much kinder than if you call it a delírio. Finally, in Brazil, you might hear the slang term piração (from the verb 'pirar,' meaning to go crazy). This is very informal and used among friends to describe something wild, crazy, or mind-bending. Understanding these alternatives allows you to calibrate your language perfectly for the situation, choosing the word that carries exactly the right amount of weight and formality.

Delírio vs. Alucinação: Delírio is a false belief (thought); Alucinação is a false perception (senses).

Ele teve o delírio de que era invisível, mas não teve nenhuma alucinação visual.

Delírio vs. Euforia: Euforia is intense happiness; Delírio is excitement that has become irrational or uncontrollable.

A euforia da festa transformou-se em delírio quando os fogos começaram.

In summary, while delírio is the most versatile and common term for a break with reality, the Portuguese language offers a rich palette of alternatives. By choosing between delírio, alucinação, desvario, and piração, you can express everything from a medical diagnosis to a casual joke about a friend's wild idea. Each word has its own 'temperature' and 'texture,' and learning to feel the difference between them is a key step on the journey to Portuguese fluency. Always consider the context: are you in a hospital, a stadium, or a bar? The setting will tell you which 'crazy' word is the right one to use.

O que você está dizendo não passa de um desvario de quem não dormiu bem.

Delírio vs. Piração: Piração is slang for something crazy or cool; Delírio is formal and implies a real disconnect from truth.

Cara, que piração esse jogo novo! É um delírio tecnológico.

Sua proposta é um absurdo, beirando o delírio.

How Formal Is It?

Fun Fact

The word literally comes from farming! 'De' (away) + 'lira' (the ridge between furrows). So, a 'delírio' is when you 'go off the track' while plowing a field.

Pronunciation Guide

UK /deˈli.ɾju/

US /deˈli.ɾjoʊ/

The stress is on the second-to-last syllable 'lí'. Because it is a proparoxítona word, it must have a written accent.

Rhymes With

martírio colírio lírio gírio empírio círio gentírio vírio

Common Errors

Pronouncing the 'r' like an English 'r' instead of a soft tap.
Stressing the final syllable 'o' instead of 'lí'.
Forgetting the accent mark when writing.
Pronouncing the initial 'd' like a 'j' (common in some Brazilian regions but not for this specific word).
Making the 'i' sound too much like 'ee' in 'beet' instead of a shorter Portuguese 'i'.

Difficulty Rating

Reading 3/5

Easy to recognize because it looks like 'delirium', but requires context to understand the tone.

Writing 4/5

Requires remembering the accent mark and the correct masculine gender.

Speaking 3/5

Pronunciation is straightforward as long as you stress the 'lí'.

Listening 2/5

Very distinct sound, easy to pick out in a sentence.

What to Learn Next

Prerequisites

mente louco febre ideia realidade

Learn Next

alucinação insanidade psicose utopia frenesi

Advanced

desvario onirismo paranoia devaneio alienação

Grammar to Know

Proparoxítonas

Words like 'delírio' always have an accent on the third-to-last syllable.

Masculine Nouns ending in 'o'

Delírio is masculine: 'O delírio', 'Um delírio'.

Preposition 'de' with nouns

Use 'de' to specify: 'delírio de grandeza'.

Verb 'estar' for temporary states

Use 'estar' for medical delirium: 'Ele está em delírio'.

Pluralization of nouns in '-o'

Just add 's': 'delírio' becomes 'delírios'.

Examples by Level

O show foi um delírio.

The show was a frenzy/wild.

Simple predicate nominative using 'ser'.

Ele está com delírio por causa da febre.

He is delirious because of the fever.

Using 'com' to indicate a state.

Que delírio esta festa!

What a wild party!

Exclamatory sentence with 'Que'.

O torcedor entrou em delírio.

The fan went wild.

Common verb phrase 'entrar em'.

Isso é um delírio total.

That is a total hallucination/absurdity.

Using 'total' as an adjective.

Não é real, é um delírio.

It's not real, it's a delusion.

Contrast between 'real' and 'delírio'.

O delírio começou à noite.

The delirium started at night.

Subject of the sentence.

Eles vivem um delírio.

They are living a delusion.

Direct object of the verb 'viver'.

A notícia levou a cidade ao delírio.

The news drove the city wild.

Verb 'levar' with preposition 'a' (ao).

Ele tem delírios de que é um rei.

He has delusions that he is a king.

Plural 'delírios' with 'de que' clause.

O filme é um delírio de cores.

The movie is a frenzy of colors.

Metaphorical use for aesthetics.

Pare de falar esse delírio.

Stop saying that nonsense.

Imperative 'pare' with object.

O paciente acordou em delírio.

The patient woke up in delirium.

Prepositional phrase 'em delírio'.

A vitória foi um delírio coletivo.

The victory was a collective frenzy.

Adjective 'coletivo' modifying 'delírio'.

Eu não acredito nesse delírio.

I don't believe in that delusion.

Verb 'acreditar' with 'em' (nesse).

O delírio dele é passageiro.

His delirium is temporary.

Adjective 'passageiro' (temporary).

O político vive em um delírio de grandeza.

The politician lives in a delusion of grandeur.

Standard phrase 'delírio de grandeza'.

A música causou um delírio nos jovens.

The music caused a frenzy among the youth.

Verb 'causar' with indirect object.

Seus delírios o impedem de ver a verdade.

His delusions prevent him from seeing the truth.

Plural subject with third-person plural verb.

O livro descreve o delírio da guerra.

The book describes the madness/delirium of war.

Possessive 'da guerra'.

Foi um delírio pensar que daria certo.

It was a delusion to think it would work.

Infinitive clause as the logical subject.

O médico explicou o estado de delírio.

The doctor explained the state of delirium.

Noun phrase 'estado de delírio'.

Ela se perdeu em seus próprios delírios.

She got lost in her own delusions.

Reflexive verb 'perder-se'.

O delírio é um sintoma preocupante.

Delirium is a worrying symptom.

Adjective 'preocupante' modifying 'sintoma'.

O roteiro do filme beira o delírio surrealista.

The movie's script borders on surrealist delirium.

Verb 'beirar' (to border on).

A massa entrou em delírio com o discurso.

The masses went wild with the speech.

Collective noun 'a massa'.

O delírio de perseguição é um transtorno sério.

Persecutory delusion is a serious disorder.

Specific medical term.

Ele narrou seus delírios com riqueza de detalhes.

He narrated his delusions with a wealth of detail.

Adverbial phrase 'com riqueza de detalhes'.

A obra é um delírio barroco de formas.

The work is a baroque frenzy of shapes.

Artistic categorization.

Não confunda delírio com realidade.

Don't confuse delusion with reality.

Imperative 'confunda' with 'com'.

O delírio febril causou visões estranhas.

The feverish delirium caused strange visions.

Adjective 'febril' (feverish).

Sua ambição tornou-se um delírio perigoso.

His ambition became a dangerous delusion.

Verb 'tornar-se' (to become).

A estética do filme mergulha o espectador em um delírio sensorial.

The movie's aesthetics immerse the viewer in a sensory frenzy.

Verb 'mergulhar' (to immerse).

O ensaio analisa o delírio como forma de resistência.

The essay analyzes delirium as a form of resistance.

Preposition 'como' (as).

Em pleno delírio, ele proferiu palavras proféticas.

In the midst of delirium, he uttered prophetic words.

Phrase 'em pleno delírio'.

O delírio místico é um tema recorrente na literatura.

Mystical delirium is a recurring theme in literature.

Adjective 'recorrente'.

A economia global parece estar vivendo um delírio especulativo.

The global economy seems to be living a speculative frenzy.

Adjective 'especulativo'.

O autor utiliza o delírio para questionar a sanidade social.

The author uses delirium to question social sanity.

Infinitive of purpose 'para questionar'.

Seus argumentos são um delírio lógico sem precedentes.

His arguments are an unprecedented logical delusion.

Phrase 'sem precedentes'.

O delírio alcóolico pode levar a consequências graves.

Alcoholic delirium can lead to serious consequences.

Adjective 'alcóolico'.

A fronteira entre a genialidade e o delírio é, por vezes, imperceptível.

The border between genius and delirium is sometimes imperceptible.

Contrastive structure 'entre... e...'.

O texto é um intrincado delírio metafísico sobre o tempo.

The text is an intricate metaphysical delirium about time.

Adjective 'intrincado' (intricate).

A ópera culmina em um delírio orquestral de proporções épicas.

The opera culminates in an orchestral frenzy of epic proportions.

Verb 'culminar' (to culminate).

O delírio, nesta obra, atua como um catalisador da verdade oculta.

Delirium, in this work, acts as a catalyst for hidden truth.

Noun as subject with appositive 'nesta obra'.

A arquitetura da cidade é um delírio futurista de vidro e aço.

The city's architecture is a futuristic frenzy of glass and steel.

Material description 'de vidro e aço'.

Ele foi consumido pelo próprio delírio de onipotência.

He was consumed by his own delusion of omnipotence.

Passive voice 'foi consumido'.

O delírio coletivo daquela época ainda ecoa nos dias de hoje.

The collective frenzy of that time still echoes today.

Verb 'ecoar' (to echo).

Descrever tal fenômeno como mero delírio seria uma simplificação.

Describing such a phenomenon as mere delirium would be a simplification.

Gerund subject 'Descrever'.

Common Collocations

delírio de grandeza

entrar em delírio

delírio febril

levar ao delírio

delírio coletivo

beirar o delírio

puro delírio

delírio de perseguição

momento de delírio

delírio místico

Common Phrases

Isso é um delírio!

— That is completely crazy or unrealistic. Used to dismiss an idea.

Você quer viajar sem dinheiro? Isso é um delírio!

Em pleno delírio

— In the middle of a confused or frenzied state. Often used for dramatic effect.

Em pleno delírio, ele começou a cantar alto.

Viver num delírio

— To be out of touch with reality on a consistent basis.

Eles vivem num delírio de que são ricos.

Delírios da mente

— The tricks or wandering thoughts of the brain. Often poetic.

São apenas delírios da mente cansada.

Cair no delírio

— To succumb to a state of irrationality or extreme excitement.

Não deixe o sucesso fazer você cair no delírio.

Delírio total

— Complete and absolute madness or excitement.

A festa de ontem foi um delírio total.

Sem delírios

— Being realistic; without any false hopes or crazy ideas.

Vamos analisar os fatos, sem delírios.

Fruto do delírio

— Something that resulted from an irrational thought process.

Essa teoria é fruto do delírio de um conspiracionista.

Delírio passageiro

— A temporary moment of confusion or excitement.

Foi apenas um delírio passageiro da juventude.

Beirando o delírio

— Almost becoming crazy or completely irrational.

O cansaço dela estava beirando o delírio.

Often Confused With

delírio vs delusão

English speakers often invent this word. In Portuguese, use 'delírio' or 'ilusão' instead.

delírio vs ilusão

An illusion is a trick of the senses; a delirium is a deeper mental confusion.

delírio vs sonho

A dream happens while sleeping; a delirium is a waking state of confusion.

Idioms & Expressions

"Levar a plateia ao delírio"

— To perform so well that the audience goes wild with excitement. Very common in reviews.

O solo de guitarra levou a plateia ao delírio.

Journalistic

"Delírio de grandeza"

— An idiom for someone with an inflated sense of self-importance. Used both clinically and as an insult.

Aquele chefe tem um delírio de grandeza insuportável.

Neutral

"Entrar em delírio"

— To lose control of one's senses due to joy or illness. It's a standard idiom for 'going crazy'.

Quando o Brasil marcou, o país inteiro entrou em delírio.

Common

"Ter delírios com algo"

— To be obsessively thinking about something to the point of irrationality.

Ele tem delírios com a ideia de ficar famoso.

Informal

"Delírio coletivo"

— A situation where a whole group of people shares a strange or irrational belief or excitement.

Aquele programa de TV foi um delírio coletivo dos anos 90.

Colloquial/Internet Slang

"Não passa de um delírio"

— A phrase used to strongly emphasize that something is not true or possible.

Sua promessa não passa de um delírio político.

Neutral/Formal

"Em um mar de delírios"

— To be completely surrounded by or lost in irrational thoughts.

O escritor se afogou em um mar de delírios antes de terminar a obra.

Literary

"Delírio dos sentidos"

— An overwhelming sensory experience, often used for food, art, or romance.

O jantar foi um verdadeiro delírio dos sentidos.

Sophisticated

"Acordar do delírio"

— To suddenly realize the truth and stop believing in something impossible.

Finalmente ela acordou do delírio e viu que ele mentia.

Neutral

"Alimentar delírios"

— To encourage someone's unrealistic or crazy ideas.

Não devemos alimentar os delírios de quem não quer trabalhar.

Neutral

Easily Confused

delírio vs delirante

Is it a noun or an adjective?

Delírio is the noun (the thing); delirante is the adjective (the quality).

O delírio dele é delirante.

delírio vs alucinação

Both involve things that aren't real.

Alucinação is about seeing/hearing; delírio is about believing/thinking.

Ele viu um dragão (alucinação) e achou que era o dono dele (delírio).

delírio vs euforia

Both describe high energy.

Euforia is happiness; delírio is happiness that has lost touch with reality.

A euforia da vitória virou um delírio na rua.

delírio vs desvario

Both mean madness.

Desvario is more poetic and literary; delírio is more common and clinical.

O poeta escreveu seus desvarios.

delírio vs utopia

Both are about impossible things.

Utopia is a perfect world; delírio is a crazy world.

Seu plano é uma utopia, mas para mim parece um delírio.

Sentence Patterns

O [substantivo] foi um delírio.

O jogo foi um delírio.

Entrar em delírio.

Eles entraram em delírio.

Ter delírios de [algo].

Ela tem delírios de fama.

Beirar o delírio.

A situação beirava o delírio.

Um delírio [adjetivo].

Um delírio sensorial.

Em pleno delírio.

Ele gritou em pleno delírio.

Fruto de um delírio.

Isso é fruto de um delírio.

A fronteira entre [A] e o delírio.

A fronteira entre o sonho e o delírio.

Word Family

Nouns

delírio

delirante (the person who delirates)

Verbs

delirar

Adjectives

delirante

delirado (less common)

loucura

alucinação

desvario

frenesi

insanidade

How to Use It

frequency

Common in media, sports, and literature. Less common in very simple daily chores.

Common Mistakes

Using 'delusão' instead of 'delírio'. → delírio
English speakers often try to translate 'delusion' as 'delusão', but this word is not used in modern Portuguese. Use 'delírio' for both delirium and delusion.
Saying 'uma delírio'. → um delírio
Delírio is a masculine noun. Always use masculine articles and adjectives.
Using 'delírio' for 'joking'. → brincadeira
If you say 'Isso é um delírio' to a friend who told a joke, it might sound like you are calling them mentally ill. Use 'brincadeira' for jokes.
Writing 'delirio' without the accent. → delírio
In Portuguese, all proparoxítona words must have a written accent. Omitting it is a spelling error.
Confusing 'delírio' with 'alucinação'. → context dependent
Remember: delírio is a thought error; alucinação is a sensory error. Don't use them interchangeably in clinical contexts.

Tips

Use it for emphasis

If you want to say a concert was better than just 'good', say 'A plateia foi ao delírio'. It sounds much more native.

Check the accent

Always write the accent on 'delírio'. It's one of the most common spelling mistakes for learners.

Medical vs. Social

Remember that in a hospital, this word is serious. In a stadium, it is celebratory. Always read the room.

Learn the verb

The verb 'delirar' is very useful. 'Você está delirando!' is a great way to tell someone they are being totally unrealistic.

Carnival Spirit

Associate 'delírio' with the energy of Carnival to remember its meaning of 'wild, colorful frenzy'.

Delírio vs. Ilusão

If you are tricked by your eyes, it's an 'ilusão'. If you are tricked by your mind, it's a 'delírio'.

Formal Writing

In academic papers, use 'delírio' specifically for cognitive errors. For general madness, 'insanidade' might be better.

The 'Lira' Furrow

Remember the Latin root: going off the furrow. It helps you remember that 'delírio' is a deviation from the path of reason.

News Headlines

Look for 'delírio' in sports headlines. It's the standard word for 'fans going wild'.

Delírio de Grandeza

Memorize this specific phrase. It's used very often to describe arrogant people.

Memorize It

Mnemonic

Think of a 'DELI' that sells 'RIO' water. If you drink it, you might have a 'delírio' (delirium) and start acting crazy!

Visual Association

Imagine a person trying to plow a field but their tractor is zig-zagging everywhere because they are confused. That's a 'delírio'.

Word Web

Mente Febre Sonho Festa Confusão Realidade Médico Torcida

Challenge

Try to use 'delírio' in three ways today: once to describe a great song, once to describe an impossible plan, and once to talk about a dream.

Word Origin

From the Latin 'delirium', which comes from the verb 'delirare'.

Original meaning: To deviate from the straight line or furrow (in plowing).

It belongs to the Romance language family, derived from Latin roots shared with French 'délire' and Spanish 'delirio'.

Cultural Context

Be careful when using 'delírio' to describe someone's mental health. While it is a medical term, calling someone's ideas 'delírios' in a casual setting can be dismissive or offensive if not done with care.

English speakers often use 'delusion' for long-term beliefs and 'delirium' for short-term medical states. Portuguese uses 'delírio' for both, which can lead to confusion if you don't provide context.

Machado de Assis - 'O Delírio' chapter in Memórias Póstumas de Brás Cubas. The song 'Delírio' by Brazilian singer Roberta Sá. The term 'Delírio Coletivo' used frequently on Brazilian Twitter to describe surreal news events.

Practice in Real Life

Real-World Contexts

Medical/Hospital

O paciente está em delírio?
Foi um delírio causado pela febre.
Ele apresenta episódios de delírio.
O delírio é um sintoma comum.

Concerts/Sports

A torcida entrou em delírio.
O público foi ao delírio.
Um delírio coletivo no estádio.
O show levou todos ao delírio.

Debates/Arguments

Isso é um delírio seu.
Sua proposta é puro delírio.
Não viva nesse delírio.
Pare com esses delírios!

Art/Literature

Um delírio visual impressionante.
A obra é um delírio poético.
O autor explora o delírio.
Narrativa beirando o delírio.

Daily Life/Humor

Tive um delírio e comprei tudo.
Que delírio de festa!
Você está delirando!
Foi um momento de delírio.

Conversation Starters

"Você já viu uma plateia entrar em delírio em algum show?"

"Você acha que as redes sociais criam um delírio coletivo às vezes?"

"Qual foi a ideia mais maluca que você já teve e que parecia um delírio?"

"Você já teve um delírio febril quando era criança?"

"Qual filme você acha que é um verdadeiro delírio visual?"

Journal Prompts

Descreva um momento em que você sentiu um entusiasmo tão grande que parecia um delírio.

Escreva sobre um plano 'impossível' que você tem e por que as pessoas podem achar que é um delírio.

Reflita sobre a diferença entre ter um sonho e viver um delírio.

Descreva uma cena de um filme que você considera um delírio surrealista.

Como você lidaria com um amigo que está tendo delírios de grandeza?

Frequently Asked Questions

10 questions

No! In Portuguese, 'delírio' is often used to describe positive things like extreme joy, great music, or a beautiful artistic work. If a crowd is in 'delírio', they are having a great time.

Mostly, yes. In a psychological context, 'delusion' (a false belief) is translated as 'delírio'. However, 'delírio' also translates to 'delirium' (medical confusion).

Portuguese rules require an accent on the stressed syllable of 'proparoxítonas' (words stressed on the third-to-last syllable). Without the accent, the pronunciation would change.

Not really. If you say 'Estou em delírio', people will think you are sick. Use 'Estou brincando' instead.

It is the equivalent of 'delusions of grandeur'—when someone thinks they are much more important or powerful than they really are.

It is masculine. You should always use 'o delírio' or 'um delírio'.

You can say 'Ele está delirando' or 'Ele tem delírios'. Both work well depending on the situation.

It's a popular phrase for when a whole group of people gets caught up in a weird trend or shared irrational excitement.

Yes, 'delírio febril' is the standard term for when a person becomes confused due to a high temperature.

Very common! You will see it in newspapers, hear it at football matches, and find it in many famous songs.