fickle
🇺🇸
/ˈfɪkl/
🇬🇧
/ˈfɪkl/
changes quickly without warning
It's hard to plan a picnic when the weather is so fickle.
날씨가 이렇게 변덕스러워서 소풍을 계획하기 힘들어요.
changes their mind a lot and cannot be trusted
John is quite fickle; he promises to come but often doesn't.
존은 꽤 변덕스럽다. 온다고 약속하지만 자주 오지 않는다.