가장 행복했던

happiest

→ 가장
phrase Uncommon #14,367
happiest Used before a noun to describe a past time or experience when someone was happiest.
KO: 가장 행복했던 순간은 언제였어요?
EN: When was the moment you were happiest?

가장 행복했던 순간을 생각해

Think of the happiest moment of your life.

— 해리 포터와 불사조 기사단 (2007)

여기 오면 가장 행복했던 시절로 돌아가요

Coming here takes me back to the happiest times of my life.

— 영원 (2025)