A1 Collocation Neutral 5 min read

Perder a razão.

Be wrong.

Literally: To lose the reason.

In 15 Seconds

  • Means 'to be wrong' or 'to lose your argument'.
  • Used when your logic or statement is incorrect.
  • Not about losing your sanity, just your point.
  • Common in everyday chats and friendly debates.

Meaning

Ah, `perder a razão`! It's not about losing your mind literally, but more about realizing you've made a mistake or your argument just doesn't hold water anymore. It carries a bit of a 'oops, I was wrong' vibe, sometimes with a touch of resignation or even a little embarrassment. It's that moment you admit you're not on solid ground with your point.

Key Examples

3 of 12
1

Texting a friend about a movie plot

Eu jurava que o vilão era o irmão dela, mas acho que `perdi a razão` nesse ponto.

I swore the villain was her brother, but I think I was wrong on that point.

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2

Discussing a sports game outcome

O time deles jogou muito melhor no segundo tempo. Eu `perdi a razão` ao dizer que o nosso ganharia fácil.

Their team played much better in the second half. I was wrong to say ours would win easily.

<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>
3

Ordering food via app

Eu pedi o prato picante, mas acho que `perdi a razão` sobre o meu limite de pimenta.

I ordered the spicy dish, but I think I was wrong about my spice limit.

<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>
🌍

Cultural Background

The phrase `perder a razão` likely emerged from a cultural context where logical argumentation and intellectual honesty were valued. It reflects a social understanding that admitting one's errors in reasoning is a sign of maturity, not weakness. It’s a polite way to concede a point, avoiding unnecessary conflict and maintaining social harmony, which is often prioritized in Portuguese-speaking cultures.

💡

It's Not About Sanity!

Remember, `perder a razão` is about your argument or statement being incorrect, not about losing your mind. Keep that distinction clear!

⚠️

Avoid 'Perder a Cabeça' Confusion

Never mix up `perder a razão` (to be wrong) with `perder a cabeça` (to lose your temper). Saying 'I lost my reason' when you mean 'I lost my temper' is a common, embarrassing mistake!

In 15 Seconds

  • Means 'to be wrong' or 'to lose your argument'.
  • Used when your logic or statement is incorrect.
  • Not about losing your sanity, just your point.
  • Common in everyday chats and friendly debates.

What It Means

Perder a razão is a super common Portuguese phrase. It means you're wrong about something. You might have thought you were right, but now you see you're not. It’s like admitting your argument crumbled. It’s the opposite of being right or having a valid point. Think of it as your reasoning just… disappeared. It’s a gentle way to say you messed up your logic. It doesn't usually imply you're crazy, just that your conclusion or statement is incorrect.

How To Use It

You use perder a razão when you've been proven wrong. Maybe someone showed you evidence. Or perhaps your own thoughts led you to a dead end. It fits when you need to back down from a debate. It’s also great for acknowledging a factual error. You can use it about yourself or someone else. It’s quite flexible! Just remember, it’s about being incorrect, not about losing your sanity. That's a whole different story, and probably a more dramatic one!

Real-Life Examples

  • Speaker: "Eu achava que o filme era de 2010." (I thought the movie was from 2010.)

Speaker: "Na verdade, é de 2012. Você perdeu a razão aí."

(Actually, it's from 2012. You were wrong there.)

  • Speaker: "Estou convencido de que o trem vai atrasar hoje."

Speaker: "Olha, ele chegou adiantado! Acho que você perdeu a razão desta vez."

(Look, it arrived early! I think you were wrong this time.)

  • Speaker: "Eu disse que a capital da Austrália era Sydney."

Speaker: "Ops, perdi a razão. É Canberra."

(Oops, I was wrong. It's Canberra.)

When To Use It

Use perder a razão when you're discussing facts or opinions. It works in friendly debates. It’s perfect for correcting yourself politely. You can use it when someone else clearly made a mistake. Think about situations where certainty has faded. Maybe you were absolutely sure about something, but you weren't. It's a low-stakes way to admit error. It's also good for everyday conversations about who's right or wrong. Like when you're arguing about whose turn it is to do the dishes. "Ok, ok, talvez eu tenha perdido a razão."

When NOT To Use It

Don't use perder a razão for serious accusations. It's too mild for crimes or major betrayals. It’s not for when someone is genuinely losing their mind. That requires different vocabulary! Avoid it in highly formal legal settings. You wouldn't say a judge perdeu a razão in a trial. Also, avoid it if you want to sound extremely authoritative. It implies a concession, not a command. It’s not for winning arguments, but for admitting you didn't have a good one. So, no blaming your boss for perder a razão in a performance review!

Common Mistakes

Eu perdi a cabeça porque você estava errado. Eu perdi a razão porque você estava errado.

(This mixes up losing your temper with being wrong. Perder a cabeça means to lose your temper.)

✗ Você ganhou a razão agora.

→ ✓ Você está certo agora.

(This sounds awkward. Ganhar a razão isn't a common pairing. It's better to say someone está certo - is right.)

✗ Eu perdi o sentido.

→ ✓ Eu perdi a razão.

(Perder o sentido means to faint or lose consciousness, which is definitely not what you want to say here! Unless you actually fainted from being wrong, which would be... dramatic.)

Similar Expressions

  • Estar errado: This is the most direct synonym. It simply means 'to be wrong'. Perder a razão often implies a process of realizing you are wrong, or that your argument has failed.
  • Enganar-se: Means 'to be mistaken' or 'to deceive oneself'. It's similar but can sometimes imply a self-deception aspect.
  • Não ter razão: Means 'to not have reason' or 'to be in the wrong'. It's very close in meaning, focusing on the lack of justification for one's stance.
  • Se enganar: Similar to enganar-se, meaning 'to be mistaken'.

Common Variations

  • Perder a razão (most common)
  • Perder a razão dele/dela/minha: To lose one's own reason. (e.g., Ele perdeu a razão dele - He lost his argument/was proven wrong.)
  • Ter perdido a razão: Having lost the reason (past participle). (e.g., Eu já tinha perdido a razão antes de você falar - I had already been proven wrong before you spoke.)
  • Sometimes people might say perdeu o juízo (lost judgment), but this leans more towards irrationality than just being factually incorrect. It's a bit stronger.

Memory Trick

💡

Imagine you're arguing, holding onto a big, red REASON (like a sign). Suddenly, you LOSE (perder) your grip, and the sign falls! You lost the reason you were holding onto. Perder a razão = losing your argument sign. Easy peasy, right? No more confusion with losing your mind!

Quick FAQ

  • Q: Does perder a razão mean losing your mind?

A: No, not usually! It means you're incorrect or your argument isn't valid. Think 'I was wrong', not 'I went crazy'. It’s about logic, not sanity.

  • Q: Can I use it for myself?

A: Absolutely! It’s very common to say Eu perdi a razão when you realize you made a mistake. It shows self-awareness.

  • Q: Is it formal or informal?

A: It's quite versatile, mostly neutral to informal. You can use it with friends or in most casual work settings. Just avoid super-stiff, formal situations.

Usage Notes

This phrase is generally neutral to informal. While common in spoken language and casual writing, avoid it in highly formal legal or academic documents where a more precise term like 'incorreto' or 'equivocado' might be preferred. Be mindful not to confuse it with `perder a cabeça` (to lose your temper).

💡

It's Not About Sanity!

Remember, `perder a razão` is about your argument or statement being incorrect, not about losing your mind. Keep that distinction clear!

⚠️

Avoid 'Perder a Cabeça' Confusion

Never mix up `perder a razão` (to be wrong) with `perder a cabeça` (to lose your temper). Saying 'I lost my reason' when you mean 'I lost my temper' is a common, embarrassing mistake!

🎯

Graceful Concession

Use `perder a razão` to gracefully admit you're wrong. It sounds much better than stubbornly insisting you're right when you're clearly not. It shows maturity!

💬

The Art of Conceding

In many Portuguese-speaking cultures, admitting you're wrong (`perder a razão`) can be seen as a sign of strength and intellectual honesty, rather than weakness. It helps maintain harmony.

Examples

12
#1 Texting a friend about a movie plot
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Eu jurava que o vilão era o irmão dela, mas acho que `perdi a razão` nesse ponto.

I swore the villain was her brother, but I think I was wrong on that point.

Here, `perdi a razão` is used to admit a mistaken belief about a movie's plot.

#2 Discussing a sports game outcome
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

O time deles jogou muito melhor no segundo tempo. Eu `perdi a razão` ao dizer que o nosso ganharia fácil.

Their team played much better in the second half. I was wrong to say ours would win easily.

This shows admitting you were incorrect about a prediction after seeing the actual result.

#3 Ordering food via app
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

Eu pedi o prato picante, mas acho que `perdi a razão` sobre o meu limite de pimenta.

I ordered the spicy dish, but I think I was wrong about my spice limit.

Used humorously to admit underestimating personal tolerance for spice.

#4 Social media comment correction
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Ah, vi agora! O lançamento do iPhone foi em setembro, não outubro. `Perdi a razão` completamente.

Ah, I see now! The iPhone launch was in September, not October. I was completely wrong.

A common way to correct oneself publicly on social media.

#5 Instagram caption about a learning moment
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Pensava que sabia tudo sobre fotografia, mas a cada dia `perco a razão` e aprendo mais. 📸

I thought I knew everything about photography, but every day I realize I'm wrong and learn more. 📸

A slightly more reflective use, framing 'being wrong' as a learning opportunity.

#6 Job interview - discussing a past project
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Inicialmente, acreditávamos que a estratégia X seria a mais eficaz, mas os dados mostraram que `perdemos a razão` e pivotamos para a Y.

Initially, we believed strategy X would be the most effective, but the data showed we were wrong and pivoted to Y.

Used in a professional context to admit a strategic error based on evidence.

#7 Formal presentation feedback
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O consultor apontou que, com base na análise de mercado, a equipe `perdeu a razão` em sua projeção inicial de vendas.

The consultant pointed out that, based on market analysis, the team was wrong in its initial sales projection.

Reporting that a group was incorrect in a more formal setting.

Mistake: Texting a friend Common Mistake
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✗ Eu `perdi minha cabeça` porque você estava errado. → ✓ Eu `perdi a razão` porque você estava errado.

✗ I lost my head because you were wrong. → ✓ I was wrong because you were wrong.

Confusing 'losing your temper' (`perder a cabeça`) with 'being wrong' (`perder a razão`).

Mistake: Discussing a past event Common Mistake
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

✗ Eu `perdi o sentido` da data. → ✓ Eu `perdi a razão` sobre a data.

✗ I lost the meaning of the date. → ✓ I was wrong about the date.

`Perder o sentido` means to faint or lose consciousness, not to be incorrect about a fact.

#10 Humorous self-deprecation
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Comprei ações dessa criptomoeda achando que ia bombar. Acho que `perdi a razão` e meu dinheiro!

I bought stocks in this cryptocurrency thinking it would boom. I guess I was wrong and lost my money!

A lighthearted admission of a bad financial decision.

#11 Emotional realization after an argument
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Depois de pensar muito, percebi que você tinha razão. Eu `perdi a razão` naquela discussão.

After thinking a lot, I realized you were right. I was wrong in that argument.

Expressing regret and acknowledging fault after an argument.

#12 Correcting a friend gently
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

Amigo, sobre o horário do jogo, acho que você `perdeu a razão`. Começa às 8, não às 7.

Friend, about the game time, I think you're mistaken. It starts at 8, not 7.

A polite way to tell someone they are incorrect about a detail.

Test Yourself

Fill in the blank with the correct form of the phrase.

✓ Correct! ✗ Not quite. Correct answer: perdi

`Perder a razão` means to be wrong. The sentence implies the speaker realized they were incorrect.

Find and fix the error in the sentence.

✓ Correct! ✗ Not quite. Correct answer:

While `perder a sua razão` is grammatically possible, the most common and natural form is simply `perder a razão` when referring to the general state of being wrong.

Choose the sentence that uses `perder a razão` correctly.

Which sentence correctly uses the phrase?

✓ Correct! ✗ Not quite. Correct answer: Eu acho que você perdeu a razão sobre o filme.

The phrase `perder a razão` means to be wrong. Option B correctly applies this to a person's opinion about a movie.

Translate the sentence into Portuguese.

✓ Correct! ✗ Not quite. Correct answer:

This translation directly contrasts being right (`estar certo`) with being wrong (`perder a razão`).

Fill in the blank with the correct form of the phrase.

✓ Correct! ✗ Not quite. Correct answer: perdeu

The context 'Não adianta discutir' (There's no point arguing) implies that someone has already been proven wrong, hence `perdeu a razão`.

Put the words in the correct order to form a sentence.

✓ Correct! ✗ Not quite. Correct answer:

This is the standard conjugation and word order for the phrase 'I was wrong'.

Choose the sentence that uses `perder a razão` correctly.

Which sentence correctly uses the phrase?

✓ Correct! ✗ Not quite. Correct answer: Você perdeu a razão sobre a capital.

Option B correctly uses `perder a razão` to mean being factually incorrect about a specific topic (the capital city).

Find and fix the error in the sentence.

✓ Correct! ✗ Not quite. Correct answer:

This sentence is actually correct! The phrase `perder a razão` fits perfectly when someone realizes their initial belief was wrong after checking the answer key (`gabarito`). There is no error here; it's an example of correct usage.

Translate the sentence into Portuguese.

✓ Correct! ✗ Not quite. Correct answer:

This translation captures the nuance of gently pointing out someone else's mistake regarding the meeting schedule.

Put the words in the correct order to form a sentence.

✓ Correct! ✗ Not quite. Correct answer:

This sentence means 'We were wrong in the end', indicating a realization of error after a period.

Match the Portuguese phrase with its English meaning.

✓ Correct! ✗ Not quite. Correct answer:

This exercise helps differentiate `perder a razão` from similar concepts like being right or simply being mistaken.

Fill in the blank with the correct form of the phrase.

✓ Correct! ✗ Not quite. Correct answer: perdeu

The contrast between 'insisted so much' (`insistiu tanto`) and the outcome implies that the person ultimately turned out to be wrong (`perdeu a razão`).

🎉 Score: /12

Visual Learning Aids

Formality Spectrum of 'Perder a Razão'

Very Informal

Casual chats, texting friends, online comments.

Poxa, perdi a razão total nessa discussão!

Neutral

Everyday conversations, work meetings, general use.

Eu achava que o prazo era amanhã, mas perdi a razão.

Slightly Formal

Professional feedback, written reports (when admitting error).

Analisando os resultados, percebemos que perdemos a razão na previsão inicial.

Very Formal

Generally avoided due to its concessive nature.

Em um contexto extremamente formal, pode-se preferir 'estávamos incorretos'.

When Do You 'Perder a Razão'?

Perder a Razão (To Be Wrong)
💬

Debating with friends

Ok, você está certo, eu perdi a razão.

💡

Correcting yourself

Ops, perdi a razão sobre o horário.

💼

Work meeting

Nossa projeção inicial perdeu a razão.

💻

Online discussion

Vi o link, realmente perdi a razão.

👨‍👩‍👧‍👦

Family argument

Talvez eu tenha perdido a razão nesta vez.

✈️

Travel planning

Achei que o voo saía hoje, mas perdi a razão.

Comparing 'Perder a Razão' with Similar Phrases

'Perder a Razão'
Perder a razão To be wrong (often implies losing an argument or realizing your reasoning failed)
'Estar Errado'
Estar errado To be wrong (a more direct, neutral statement of incorrectness)
'Enganar-se'
Enganar-se To be mistaken (can imply self-deception or a simple error)
'Não ter razão'
Não ter razão To not have reason / To be in the wrong (focuses on the lack of justification)

Contexts for 'Perder a Razão'

Everyday Conversations

  • Discussing sports
  • Arguing about movies
  • Planning outings
🏢

Professional Settings

  • Project reviews
  • Sales forecasts
  • Strategic decisions
📱

Social Media

  • Correcting comments
  • Debating facts
  • Sharing learning moments
🤔

Personal Reflection

  • Admitting mistakes
  • Self-correction
  • Realizing errors

Practice Bank

12 exercises
Fill in the blank with the correct form of the phrase. Fill Blank beginner

Eu achava que a resposta era A, mas depois vi que ______ a razão.

✓ Correct! ✗ Not quite. Correct answer: perdi

`Perder a razão` means to be wrong. The sentence implies the speaker realized they were incorrect.

Find and fix the error in the sentence. Error Fix intermediate

Find and fix the mistake:

Ele disse que a Terra era plana e perdeu a sua razão.

✓ Correct! ✗ Not quite. Correct answer: Ele disse que a Terra era plana e perdeu a razão.

While `perder a sua razão` is grammatically possible, the most common and natural form is simply `perder a razão` when referring to the general state of being wrong.

Choose the sentence that uses `perder a razão` correctly. Choose beginner

Which sentence correctly uses the phrase?

✓ Correct! ✗ Not quite. Correct answer: Eu acho que você perdeu a razão sobre o filme.

The phrase `perder a razão` means to be wrong. Option B correctly applies this to a person's opinion about a movie.

Translate the sentence into Portuguese. Translate intermediate

I thought I was right, but I was wrong.

Hints: Use 'estar certo' for 'to be right'., Use the phrase 'perder a razão' for 'to be wrong'.

✓ Correct! ✗ Not quite. Correct answer: Eu achava que estava certo, mas perdi a razão.

This translation directly contrasts being right (`estar certo`) with being wrong (`perder a razão`).

Fill in the blank with the correct form of the phrase. Fill Blank intermediate

Não adianta discutir, você já ______ a razão.

✓ Correct! ✗ Not quite. Correct answer: perdeu

The context 'Não adianta discutir' (There's no point arguing) implies that someone has already been proven wrong, hence `perdeu a razão`.

Put the words in the correct order to form a sentence. Reorder beginner

Arrange the words in the correct order:

Click words above to build the sentence

✓ Correct! ✗ Not quite. Correct answer: Eu perdi a razão.

This is the standard conjugation and word order for the phrase 'I was wrong'.

Choose the sentence that uses `perder a razão` correctly. Choose intermediate

Which sentence correctly uses the phrase?

✓ Correct! ✗ Not quite. Correct answer: Você perdeu a razão sobre a capital.

Option B correctly uses `perder a razão` to mean being factually incorrect about a specific topic (the capital city).

Find and fix the error in the sentence. Error Fix advanced

Find and fix the mistake:

Ele pensou que sabia a resposta, mas perdeu a razão quando viu o gabarito.

✓ Correct! ✗ Not quite. Correct answer: Ele pensou que sabia a resposta, mas perdeu a razão quando viu o gabarito.

This sentence is actually correct! The phrase `perder a razão` fits perfectly when someone realizes their initial belief was wrong after checking the answer key (`gabarito`). There is no error here; it's an example of correct usage.

Translate the sentence into Portuguese. Translate advanced

It seems you were wrong about the meeting time.

Hints: Start with 'Parece que...' (It seems that...), Use 'perder a razão' for 'to be wrong'.

✓ Correct! ✗ Not quite. Correct answer: Parece que você perdeu a razão sobre o horário da reunião.

This translation captures the nuance of gently pointing out someone else's mistake regarding the meeting schedule.

Put the words in the correct order to form a sentence. Reorder intermediate

Arrange the words in the correct order:

Click words above to build the sentence

✓ Correct! ✗ Not quite. Correct answer: Nós perdemos a razão no final.

This sentence means 'We were wrong in the end', indicating a realization of error after a period.

Match the Portuguese phrase with its English meaning. Match intermediate

Match each item on the left with its pair on the right:

✓ Correct! ✗ Not quite. Correct answer:

This exercise helps differentiate `perder a razão` from similar concepts like being right or simply being mistaken.

Fill in the blank with the correct form of the phrase. Fill Blank advanced

Ele insistiu tanto, mas no fim, ______ a razão.

✓ Correct! ✗ Not quite. Correct answer: perdeu

The contrast between 'insisted so much' (`insistiu tanto`) and the outcome implies that the person ultimately turned out to be wrong (`perdeu a razão`).

🎉 Score: /12

Frequently Asked Questions

18 questions

It literally translates to 'to lose the reason'. This hints at the idea that your reasoning or argument is no longer valid or has failed you.

No, not at all! It specifically means that a person's statement, opinion, or argument is incorrect or lacks validity. It's about being factually or logically wrong, not about mental state.

Absolutely! It's very common and often recommended to use it for yourself when you realize you've made a mistake. Saying 'Eu perdi a razão' shows self-awareness and humility.

Use it when you need to admit you're wrong in a discussion, debate, or when correcting a factual error. It's perfect for everyday conversations, friendly arguments, or even in some professional contexts when acknowledging a mistake.

It can be used in semi-formal settings, like admitting a mistake in a team meeting. However, in very formal or legal contexts, you might opt for more direct phrasing like 'estávamos incorretos' (we were incorrect) or 'a premissa estava equivocada' (the premise was mistaken).

Estar errado is a more direct and neutral way to say 'to be wrong'. Perder a razão often implies that your argument or justification has failed, or that you've realized you were wrong after some thought or debate. It can carry a slightly more dynamic feel.

Yes, besides estar errado, you can use enganar-se (to be mistaken, sometimes implies self-deception) or não ter razão (to not have reason, to be in the wrong). Perder a razão is unique in its implication of a failed argument or logic.

Confusing perder a razão (to be wrong) with perder a cabeça (to lose your temper/go crazy) would lead to a very different and potentially embarrassing meaning! You'd be saying you lost your sanity instead of admitting you made a mistake.

You can say someone else perdeu a razão, like 'Ele perdeu a razão' (He was wrong). You can also specify whose reason was lost, e.g., 'Ele perdeu a razão dele', though simply 'perdeu a razão' is more common and implies the person involved.

Both Brazilian and European Portuguese speakers use perder a razão frequently. The core meaning is the same across both variants, making it a widely understood and useful expression for all Portuguese speakers.

Yes, it can! Sometimes people might say 'Ah, claro, eu perdi a razão' in a sarcastic tone when they actually believe they are right but are forced to concede playfully, or to mock someone else's stubbornness.

While perder a razão implies you *were* wrong, it doesn't inherently describe stubbornness. To emphasize stubbornness, you might say someone insiste em estar errado (insists on being wrong) or is teimoso (stubborn).

Yes, the past tense is very common. For example, 'Eu perdi a razão' (I was wrong - simple past) or 'Eu tinha perdido a razão' (I had been wrong - past perfect). These are used when the realization of being wrong happened in the past.

The most direct opposite is ter razão, which means 'to be right' or 'to have reason'. Another related opposite is estar certo, meaning 'to be correct'.

Definitely! If you predicted something that didn't happen, you can say 'Eu perdi a razão na minha previsão' (I was wrong in my prediction). It’s perfect for acknowledging failed forecasts.

Yes, perder is very common! Think of perder peso (to lose weight), perder tempo (to waste time), perder o ônibus (to miss the bus), and the aforementioned perder a cabeça (to lose one's temper). Perder a razão fits this pattern of using perder for something that is gone or no longer valid.

Perder a razão is extremely common in spoken Portuguese, perhaps even more so than estar errado in certain contexts, especially when admitting fault after a debate. Estar errado is more neutral and factual.

The phrase leans towards the failure of one's logical argument or justification ('razão' in the sense of rationale). It implies that the reasoning process led to an incorrect conclusion, hence 'losing the reason' that supported the claim.

Related Phrases

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Estar errado

synonym

To be wrong

This is the most direct synonym, offering a neutral statement of incorrectness where 'perder a razão' might imply a failed argument.

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Ter razão

antonym

To be right

This is the direct opposite, meaning to have a valid point or be correct, contrasting sharply with losing that validity.

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Não ter razão

related topic

To be in the wrong

This phrase focuses on the lack of justification for a stance, closely related to 'perder a razão' but emphasizing the absence of grounds rather than the loss of them.

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Enganar-se

related topic

To be mistaken

Similar to being wrong, but 'enganar-se' can sometimes imply a self-deception or a less definitive error than 'perder a razão'.

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Perder a cabeça

related topic

To lose one's temper

This phrase shares the verb 'perder' but refers to emotional outburst, not logical error, highlighting the importance of distinguishing the two.

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Não fazer sentido

related topic

To not make sense

This describes a statement or situation lacking logic, which could be a reason *why* someone might 'perder a razão'.

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