いい気な 〔のんきな〕easygoing, optimistic, lighthearted；〔うぬぼれた〕vain, conceited；〔自己満足した〕complacent
- 自分はいつも運がいいと信じ込んでいるとは彼もいい気なものだ
- How easygoing [optimistic] of him to believe fortune will always smile on him!
- 彼女は自分が美しいといい気になっている
- She is quite proud of her own beauty.
- ちょっとした成功で彼はいい気になっている
- He is elated over a minor success.
- いい気になるから褒めるのはやめておきなさい
- 《口》 Don't praise him or he'll get the idea that he's really something.／Don't praise him ― 「it'll make him cocky [it'll go to his head].
- あまりいい気になりなさんな
- Don't be presumptuous [cheeky/so sure of yourself].
- だれも反論しなかったので彼はいい気になって自説をまくしたてた
- Since nobody contradicted him, he just rattled on complacently about his idea [theory].
