頭が切れる

あたまがきれる

to be sharp; to be keen; to be on the ball; to have a mind like a steel trap

Also written 頭がきれる

Meaning

expv1
to be sharp; to be keen; to be on the ball; to have a mind like a steel trap; to be clever

Example sentences

彼は頭が切れるでもなく機知に富むわけでもない。

He is not witty or bright.
彼は頭が切れる。

He is sharp-witted.
彼は、頭がきれる。

He has a head on his shoulders.