간사해요 · 간사했어요 · 간사한 (+noun)
cunning, wily, sly; fickle
Example
사람 마음이 참 간사해서 상황이 바뀌면 생각도 바뀌어요.
People's hearts are so fickle — when the situation changes, so do their thoughts.
Word parts
간 wicked+사 deceive
Literally 'wicked and deceitful'.
Good to know
Set phrase 사람 마음이 간사하다 means people change their minds to suit themselves.
Related words