気きは確たしか

expression, na-adjective

in one's right mind; sane; of sound mind

Used to describe someone who is mentally sound, not crazy or delirious. Often appears in negative or questioning contexts.

• 彼かれは気きは確たしかか？

  Is he in his right mind?

• あんなことを言いうなんて、気きは確たしかじゃない。

  Saying something like that, he can't be sane.