気が違う

Etymology
Verbal phrase, composed of.

First attested in works from the late (1336–1573).

This term appears to be rare in modern usage, and it is not included in some dictionaries.

Verb

 * 1)   to go mad, to become insane
 * 2)   to be extremely unusual, to be very strange or remarkable
 * 1)   to be extremely unusual, to be very strange or remarkable
 * 1)   to be extremely unusual, to be very strange or remarkable