French · Emotions & Descriptions
"Crazy" in French: fou / folle
fou / folle
Crazy in French is fou for masculine and folle for feminine. Say C'est fou for that's crazy/amazing, and Il est fou carefully—tone matters. Soften with un peu fou.
Surprising news
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How to pronounce fou / folle
Say it
foo / ful
/fu/ /fɔl/
Foo / ful. Fou is short; folle has a clear l.
"Crazy" in French: quick reference
| French | English | When to use |
|---|---|---|
| fou / folle | crazy Gender forms. | Gender forms. |
| c'est fou | that's crazy / amazing Reaction. | Reaction. |
| devenir fou / folle | to go crazy Overwhelm. | Overwhelm. |
| idée folle | crazy idea Plans. | Plans. |
How to use fou / folle in real life
- 1Surprising news
C'est fou, ils se marient déjà ?
That's crazy—they're getting married already?
C'est fou.
- 2Busy week
Je deviens folle avec tous ces mails.
I'm going crazy with all these emails.
Feminine.
- 3Wild plan
Partir demain, c'est une idée folle.
Leaving tomorrow is a crazy idea.
Idée folle.
Mistakes English speakers make with fou / folle
Incorrect: Elle est fou.
Correct: Elle est folle.
Feminine form is folle.
Incorrect: C'est crazy.
Correct: C'est fou.
Use fou, not English crazy.
Good to know
C'est fou is everyday wow energy; calling a person fou/folle can be joking or harsh. Fol before a masculine vowel sound: un fol espoir. Mental-health topics deserve careful, respectful wording.
Try it in a ChatPal conversation
Reacting to concert tickets
ChatPal
On a des places au premier rang. C'est fou !
We have front-row seats. That's crazy!
You
Trop fou. Je n'y crois pas.
So crazy. I can't believe it.
ChatPal
Cette soirée va être folle.
This night is going to be crazy.
You
Je choisis la tenue demain.
I'll pick the outfit tomorrow.
This is a sample. In ChatPal you have this conversation out loud and get feedback on what you say.
Practice this conversation in ChatPal"Crazy" in other languages
FAQ
Common questions about "Crazy" in French
How do you say crazy?
Fou / folle.
What does c'est fou mean?
That's crazy—often amazed, not insulting.
How does gender work?
Fou (m.), folle (f.); fol before some masculine vowels.
How do you pronounce fou?
Foo.
Learn a word, then use it out loud
- Step 1: See it in context
- Step 2: Say it out loud
- Step 3: Get feedback
- Step 4: Use it in real scenarios
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