機き嫌げん買かい

noun

fickle; capricious

Describes a person whose mood or attitude changes easily and unpredictably. Often used in a critical or negative sense.

• 彼かれは機き嫌げん買かいで、さっきまで笑わらっていたのに急きゅうに怒おこり出だした。

  He is fickle; he was laughing just a moment ago and then suddenly got angry.

• 機き嫌げん買かいな上じょう司しに振ふり回まわされるのは疲つかれる。

  It's exhausting to be at the mercy of a capricious boss.