Translation guide
Expresses that someone or something is insane, wild, or extremely enthusiastic. Japanese uses different words depending on whether you mean mentally ill, foolishly reckless, wildly fun, or obsessively passionate.
To say someone is clinically insane or has lost their mind.
Literally 'is crazy/insane'. Can be offensive if used lightly. Use with care.
He is crazy.
More explicit: 'one's mind is crazy'. Stronger than 狂っている.
That person is crazy.
Literally 'head is strange'. Common colloquial way to say someone is crazy or not right in the head.
To describe someone doing something extremely dangerous or stupid.
Means 'it's reckless/absurd'. Often used when someone does something outrageously dangerous.
That's crazy!
Literally 'not sane'. Used when someone's actions seem insane.
You're crazy to do that.
Loanword from English. Used in casual speech, often for wild stunts or ideas.
That jump was crazy.
To describe a party, event, or experience as extremely fun and out of control.
Means 'insanely fun'. めちゃくちゃ is an intensifier meaning 'crazy/messy'.
Yesterday's party was crazy fun!
Slang meaning 'crazy/insane/awesome'. Can be positive or negative depending on context.
Literally 'flying off'. Means something is wild, extreme, or mind-blowing.
That concert was crazy.
To say someone is crazy about a hobby, person, or thing.
Means 'to be absorbed in/crazy about'. Use with a noun or noun phrase.
He's crazy about video games.
Means 'to be hooked on'. Very common casual expression.
I've been crazy about Korean dramas lately.
Suffix meaning 'fanatic' or 'crazy about'. Often used in compounds like サッカー狂 (soccer fanatic).
He's crazy about fishing.
Directly translating 'be crazy' as 狂っている can sound offensive or clinical. Choose the appropriate expression based on context: mental illness, recklessness, excitement, or passion.
He is crazy (mentally ill).
He is crazy about soccer.
この曲ヤバくない？
Isn't this song crazy?