좋으시네

good, nice

→ 좋다
좋 feel pleasant + 으시 Subject honorific + 네 Realization (sentence-final ending)
adjective Rare #27,936
good, nice An honorific form used when describing someone respectfully; the ending -네 often expresses an observation.
KO: 할아버지는 손재주가 좋으시네.
EN: Grandpa is good with his hands.
Forms of 좋다

몸 좋으시네

You're in great shape.

— 그레이트 뷰티 (2013)

솜씨 좋으시네

You're quite skilled.

— 인생은 아름다워 (1997)

손님, 운 좋으시네

You're in luck, sir.

— I Saw the Devil (2010)

솜씨가 아주 좋으시네

You're really good at this.

— 비지터 (1993)