A2 スラング カジュアル 1分で読める

C'est dingue !

That's crazy!

練習する

Phrase in 30 Seconds

A versatile, high-energy way to express shock, disbelief, or amazement in casual French conversation.

  • Means: 'That's crazy' or 'That's insane' (positive or negative).
  • Used in: Reacting to news, seeing something impressive, or expressing frustration.
  • Don't confuse: Avoid using this in formal settings like job interviews.
Surprising news + 🤯 = C'est dingue !

あなたのレベルに合った解説：

This is a simple way to say 'It is crazy'. You use it when you are very surprised. It is like saying 'Wow!' in English. Use it with friends, not with your teacher. It is easy to remember because it sounds a bit like a bell going 'ding!'.
At this level, you can use 'C'est dingue' to react to stories. It helps you sound more natural. You can use it for good things (a great party) or bad things (a long line at the museum). Remember, it is informal slang, so keep it for casual moments.
You can now integrate 'C'est dingue' into more complex sentences using the pattern 'C'est dingue que...' followed by the subjunctive, or 'C'est dingue de...' with an infinitive. It's a great way to show your personality and emotional range during a conversation with native speakers.
At the B2 level, you should recognize the nuance between 'dingue', 'fou', and the verlan 'ouf'. 'C'est dingue' is your versatile middle-ground slang. You can use it to critique social situations or express intense admiration for artistic works, fitting perfectly into the 'argumentation' and 'expression of opinion' requirements of this level.
Advanced learners should appreciate the etymological roots of 'dingue' and its transition from a medical term to a colloquialism. You can use it ironically or to emphasize the absurdity of a situation. Understanding its placement in the register hierarchy allows you to code-switch effectively between 'C'est insensé' and 'C'est dingue'.
Mastery involves understanding the 'semantic bleaching' of the term—how it has become a filler for surprise while retaining its expressive power. You should be able to analyze its use in French literature and cinema as a marker of social class or emotional state, and use it with the perfect prosody and non-verbal cues that define native-level fluency.

意味

Expresses astonishment or disbelief.

🌍

文化的背景

In France, 'C'est dingue' is often used with the 'bof' attitude—a mix of surprise and a slight sense of 'only in France' or 'that's life'. Quebecers often prefer 'C'est malade !' for positive surprises, but 'C'est dingue' is perfectly understood, though it sounds very 'European French'. Belgian French uses 'dingue' similarly to France, but you might also hear 'C'est fou' more frequently in certain regions. In countries like Senegal or Ivory Coast, 'dingue' is used but often competes with local slang terms like 'C'est le feu !' (It's fire!).

💡

Use your face!

In France, 'C'est dingue' is 50% words and 50% facial expression. Wide eyes are a must.

⚠️

Watch the register

Don't use this with your French grandmother unless she's very 'cool'.

💡

Use your face!

In France, 'C'est dingue' is 50% words and 50% facial expression. Wide eyes are a must.

⚠️

Watch the register

Don't use this with your French grandmother unless she's very 'cool'.

🎯

The 'Truc' combo

Saying 'C'est un truc de dingue' makes you sound 10x more like a native than just 'C'est dingue'.

自分をテスト

Choose the most natural reaction to: 'J'ai trouvé 100 euros par terre !'

J'ai trouvé 100 euros par terre !

✓ 正解！ ✗ おしい！ 正解: C'est dingue !

Finding 100 euros is a surprising and positive event, making 'C'est dingue' the perfect reaction.

Complete the sentence with the correct form.

C'est ____ de voir autant de neige en avril !

✓ 正解！ ✗ おしい！ 正解: dingue

In the expression 'C'est dingue', the adjective remains singular.

Match the sentence to the context.

1. C'est un truc de dingue ! | 2. Il est dingue, ce mec. | 3. C'est dingue, j'ai faim.

✓ 正解！ ✗ おしい！ 正解: 1-C, 2-A, 3-B

'Truc de dingue' refers to an event, 'ce mec' refers to a person, and the last one is a reaction to a feeling.

What would B say to express frustration?

A: Le train a encore 2 heures de retard. B: ____ !

✓ 正解！ ✗ おしい！ 正解: C'est dingue

A 2-hour delay is frustrating and 'crazy', so 'C'est dingue' fits the negative surprise.

🎉 スコア： /4

ビジュアル学習ツール

When to use 'C'est dingue'

⭐

Positive

  • • Amazing news
  • • Great talent
  • • Beautiful view
💢

Negative

  • • High prices
  • • Long delays
  • • Bad behavior
😲

Surprise

  • • Coincidences
  • • Magic tricks
  • • Gossip

練習問題バンク

5 問題
正しい答えを選んでね Fill Blank

✓ 正解！ ✗ おしい！ 正解:
Choose the most natural reaction to: 'J'ai trouvé 100 euros par terre !' Choose A1

J'ai trouvé 100 euros par terre !

✓ 正解！ ✗ おしい！ 正解: C'est dingue !

Finding 100 euros is a surprising and positive event, making 'C'est dingue' the perfect reaction.

Complete the sentence with the correct form. Fill Blank A2

C'est ____ de voir autant de neige en avril !

✓ 正解！ ✗ おしい！ 正解: dingue

In the expression 'C'est dingue', the adjective remains singular.

Match the sentence to the context. situation_matching B1

1. C'est un truc de dingue ! | 2. Il est dingue, ce mec. | 3. C'est dingue, j'ai faim.

✓ 正解！ ✗ おしい！ 正解: 1-C, 2-A, 3-B

'Truc de dingue' refers to an event, 'ce mec' refers to a person, and the last one is a reaction to a feeling.

What would B say to express frustration? dialogue_completion A2

A: Le train a encore 2 heures de retard. B: ____ !

✓ 正解！ ✗ おしい！ 正解: C'est dingue

A 2-hour delay is frustrating and 'crazy', so 'C'est dingue' fits the negative surprise.

🎉 スコア： /5

よくある質問

10 問

No, it's not a swear word. It's just very informal. You can use it in front of children.

Yes, 'Il est dingue' means 'He's crazy'. It can be an insult or a compliment depending on your tone.

'Fou' is the standard word. 'Dingue' is more slangy and expressive.

You would say 'C'est pas dingue' (informal) or 'Ce n'est pas incroyable'.

Generally no, unless you have a very close, casual relationship with your colleagues.

Yes! 'C'est dingue, j'adore !' is very common.

As an adjective, yes (dingues), but in the phrase 'C'est dingue', it's always singular.

'Ouf' is more modern/youthful. If you are over 30, 'dingue' might sound more natural for you.

It's better to say 'C'est vraiment dingue' or 'C'est trop dingue'.

It's the same! 'Un homme dingue' / 'Une femme dingue'.

関連フレーズ

🔄

C'est ouf

synonym

That's crazy (verlan)

🔗

C'est fou

similar

That's crazy

🔗

Un truc de malade

builds on

A crazy thing

🔗

C'est n'importe quoi

contrast

That's nonsense

🔗

Dingo

specialized form

Wacky/Goofy

どこで使う？

💰

Reacting to a high price

A: Ce café coûte huit euros !

B: C'est dingue ! C'est trop cher.

informal
🌅

Seeing a beautiful view

A: Regarde le coucher de soleil.

B: Waouh, c'est dingue, les couleurs sont magnifiques.

informal
🙊

Hearing gossip

A: Tu sais que Julie a démissionné ?

B: Non ! C'est dingue, elle adorait son job !

informal
💻

Frustration with technology

A: Mon ordinateur a encore planté.

B: C'est dingue, il est tout neuf !

informal
🎸

At a concert

A: L'énergie dans la salle est incroyable !

B: Ouais, c'est un truc de dingue !

informal
🤝

Meeting someone by chance

A: Tiens, salut ! Qu'est-ce que tu fais ici ?

B: C'est dingue de se croiser à New York !

informal

暗記しよう

記憶術

Think of a bell going 'Ding!' when a 'Crazy' idea pops into your head.

視覚的連想

Imagine a person with their hair standing on end, eyes wide, pointing at something unbelievable while a giant neon 'DINGUE' sign flashes behind them.

Rhyme

C'est dingue, ça bringue ! (It's crazy, it's partying!)

Story

You walk into a room and see a penguin playing the piano. You are so shocked that you drop your 'Dengue' medicine, and the only thing you can say is 'C'est dingue !'

In Other Languages

In English, we say 'That's crazy' or 'That's nuts'. In Italian, they use 'È pazzesco'. All use the concept of madness to describe surprise.

Word Web

fououfinsenséhallucinantincroyablemaladedingo

チャレンジ

Try to use 'C'est dingue' at least three times today: once for something good, once for something bad, and once for something weird.

Review this phrase in 1 day, 3 days, and 1 week to lock in the informal 'slang' feel.

発音

Stress Stress the 'dingue' slightly more than 'C'est'.

Standard 'say' sound but shorter.

The 'in' is a nasal vowel, followed by a hard 'g'.

フォーマル度スペクトル

フォーマル
C'est tout à fait incroyable.

C'est tout à fait incroyable. (Reacting to news)

ニュートラル
C'est vraiment surprenant.

C'est vraiment surprenant. (Reacting to news)

カジュアル
C'est dingue !

C'est dingue ! (Reacting to news)

スラング
C'est ouf !

C'est ouf ! (Reacting to news)

Derived from the word 'dengue' (the fever), which came into French via Spanish. It originally described the delirious state of those suffering from the illness.

19th Century:
Early 20th Century:
1960s-Present:

豆知識

The word 'dengue' itself might come from the Swahili word 'dinga', meaning a sudden cramp or seizure.

文化メモ

In France, 'C'est dingue' is often used with the 'bof' attitude—a mix of surprise and a slight sense of 'only in France' or 'that's life'.

“C'est dingue, l'administration est encore en grève.”

Quebecers often prefer 'C'est malade !' for positive surprises, but 'C'est dingue' is perfectly understood, though it sounds very 'European French'.

“Ton nouveau char est dingue ! (Your new car is crazy!)”

Belgian French uses 'dingue' similarly to France, but you might also hear 'C'est fou' more frequently in certain regions.

“C'est dingue, il pleut encore une fois.”

In countries like Senegal or Ivory Coast, 'dingue' is used but often competes with local slang terms like 'C'est le feu !' (It's fire!).

“Le match d'hier, c'était dingue !”

会話のきっかけ

“

Tu as entendu la nouvelle sur... ?

“

Raconte-moi un truc de dingue qui t'est arrivé.

“

C'est dingue le prix de l'immobilier ici, tu ne trouves pas ?

よくある間違い

✗

C'est très dingue.

✓

C'est complètement dingue / C'est vraiment dingue.

wrong context
In French, we don't usually use 'très' with 'dingue' because 'dingue' is already an absolute/extreme adjective. Use 'vraiment' or 'complètement' for emphasis.

L1 Interference

0
✗

Using it in a formal email to a boss.

✓

C'est surprenant / C'est incroyable.

wrong register
It's too informal for professional writing. It can make you look unprofessional.

L1 Interference

0
✗

C'est dingue que il est là.

✓

C'est dingue qu'il soit là.

wrong conjugation
When 'C'est dingue que' is used to express an emotion or judgment, it usually triggers the subjunctive mood.

L1 Interference

0 1
✗

Il est un dingue.

✓

C'est un dingue / Il est dingue.

missing article
When using 'dingue' as a noun, use 'C'est'. When using it as an adjective, use 'Il est'. Don't mix the two structures.

L1 Interference

0

In Other Languages

Spanish Very Similar

¡Qué fuerte! / ¡Es una locura!

Spanish 'Qué fuerte' is slightly more focused on the impact of the news.

German Very Similar

Das ist Wahnsinn!

German can also use 'Krass' which is even more informal.

Japanese moderate

やばい (Yabai)

Yabai is much more versatile and can be used as an adjective for almost anything.

Arabic Very Similar

مش معقول (Mish ma'qul)

It is slightly more formal than 'dingue' but used in the same casual contexts.

Chinese moderate

太疯狂了 (Tài fēngkuáng le)

Chinese speakers might more often use 'Bùkěsīyì' (unbelievable) for positive surprises.

Korean moderate

대박 (Daebak)

Daebak is almost always positive, whereas 'dingue' can be very negative.

Portuguese Very Similar

É loucura! / Que doideira!

'Doideira' is very informal and common in Brazil.

English Very Similar

That's crazy! / That's nuts!

English 'nuts' is slightly more informal than 'crazy'.

Spotted in the Real World

🎬

(2001)

“C'est dingue, non ?”

Amélie often reacts to the small, magical coincidences of life with this phrase.

🎵

(2009)

“Et là tu te dis que c'est fini car pire que ça ce serait la mort. Qu'en fait tu t'en sors mais quand tu crois qu'il n'y en a plus, et ben il y en a encore ! C'est dingue...”

Stromae describes the never-ending cycle of life's problems.

📱

(2023)

“C'EST DINGUE CE QUI SE PASSE !”

Commonly used in video titles to generate excitement and clicks.

間違えやすい

C'est dingue ! 対 C'est digne

Sounds very similar to 'dingue'.

Digne means 'worthy' or 'dignified'. Context usually makes it clear.

C'est dingue ! 対 C'est une dague

Similar pronunciation for beginners.

A 'dague' is a dagger (a weapon).

よくある質問 (10)

No, it's not a swear word. It's just very informal. You can use it in front of children.

usage contexts

Yes, 'Il est dingue' means 'He's crazy'. It can be an insult or a compliment depending on your tone.

grammar mechanics

'Fou' is the standard word. 'Dingue' is more slangy and expressive.

comparisons

You would say 'C'est pas dingue' (informal) or 'Ce n'est pas incroyable'.

grammar mechanics

Generally no, unless you have a very close, casual relationship with your colleagues.

usage contexts

Yes! 'C'est dingue, j'adore !' is very common.

practical tips

As an adjective, yes (dingues), but in the phrase 'C'est dingue', it's always singular.

grammar mechanics

'Ouf' is more modern/youthful. If you are over 30, 'dingue' might sound more natural for you.

cultural usage

It's better to say 'C'est vraiment dingue' or 'C'est trop dingue'.

common mistakes

It's the same! 'Un homme dingue' / 'Une femme dingue'.

grammar mechanics

Learning Path

Prerequisites

役に立った？

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