A stylish, well-groomed, and sophisticated man; having a gentlemanly, suave appearance or manner.
彼はいつもスーツが似合っていて、本当にダンディだ。
He always looks good in suits — he's really dandy/suave.
白髪交じりになっても、年齢を重ねてダンディになった。
Even with a few gray hairs, he became more dashing with age.
あの俳優はダンディな役がよく似合う。
That actor suits dandy roles very well.