事後諸葛亮

Simplified: 事后诸葛亮

shìhòuzhūgěliàng ㄕˋ ㄏㄡˋ ㄓㄨ ㄍㄜˇ ㄌㄧㄤˋ

    • person who is wise after the event

Character by character

Saying俗语俗語

Idiom惯用语 · In everyday use

Literally
Zhuge Liang after the event
Meaning
Someone who offers wise advice only after things have gone wrong. Critical or mocking. Like 'hindsight is 20/20' or 'a Monday-morning quarterback'.

Sources