天てん気き屋や

noun

moody person; temperamental person; fickle person

Describes someone whose mood or attitude changes easily, like the weather. Often used in a light or mildly critical way. Also seen as お天気屋.

See also: お天気屋

• 彼かれは天てん気き屋やだから、急きゅうに機き嫌げんが悪わるくなることがある。

  He's a moody person, so he sometimes suddenly gets into a bad mood.

• あの人ひとは天てん気き屋やで、言いうことがコロコロ変かわる。

  That person is fickle and keeps changing what they say.