부지런해요 · 부지런했어요 · 부지런한 (+noun)
diligent, hardworking, industrious
Example
우리 할머니는 아침 일찍 일어나시는 부지런한 분이에요.
My grandmother is a hardworking person who gets up early in the morning.
Good to know
부지런하다 means busy and active; for steady, honest effort, Koreans prefer 성실하다.
Related words