be wise after the event

US /biː waɪz ˈæftər ðə ɪˈvent/
UK /biː waɪz ˈæftər ðə ɪˈvent/
"be wise after the event" picture
1.

사후에 현명해지다, 뒤늦게 깨닫다

to understand what should have been done only after something has happened

:
It's easy to be wise after the event, but we made the best decision we could at the time.
사후에 현명해지는 것은 쉽지만, 우리는 당시 최선의 결정을 내렸습니다.
He always tends to be wise after the event, pointing out mistakes when it's too late.
그는 항상 사후에 현명해지는 경향이 있어, 너무 늦었을 때 실수를 지적한다.