Translation guide
Describes a state of being irrational, crazy, or extremely intoxicated. Japanese expressions vary by cause: mental instability, extreme emotion, or substance influence.
To say someone is mentally unstable, irrational, or acting in a crazy way.
Literally 'head is strange'. A common, direct way to say someone is crazy or not thinking straight. Can be insulting.
Is he out of his mind?
Literally 'mind has gone mad'. Stronger, more clinical or dramatic. Implies genuine insanity.
To do such a thing, I can only think he's out of his mind.
Literally 'not in a sane state'. Used when someone is temporarily not thinking rationally, often due to emotion or shock.
I said that when I was out of my mind.
Slangy, rough way to say 'crazy'. Often used among friends or in rough speech.
That guy is out of his mind.
To describe someone who is so angry or emotional that they are not thinking clearly.
Literally 'blood is rushing to the head'. Describes being so angry you can't think straight.
He's out of his mind with anger and won't listen to reason.
Onomatopoeic expression for suddenly getting furious. Implies temporary loss of control.
I was out of my mind with rage and hit him.
Means to be in a frenzy or blind with rage. More literary or formal.
To express being so overjoyed or excited that one loses rational thought.
To describe someone who is extremely intoxicated and acting irrationally.
The phrase 'out of one's mind' cannot be directly translated word-for-word into Japanese. Use the expressions above depending on context.
頭がおかしい is a common, everyday phrase for 'crazy' and can be used lightly. 気が狂っている is stronger and implies serious mental illness. Use with caution.
He's out of his mind with fury and doesn't know what he's saying.
I was out of my mind with excitement when I heard I passed.