不咎既往

bùjiùjìwǎng
  1. not censure sb for his past misdeeds
  2. overlook sb's past mistakes
  3. let bygones be bygones

CEDICT

to let bygones be bygones

Wiktionary

对过去的错误不再责难。参见「既往不咎」条。

重編國語辭典

Entry Composition

1 不 bù
  1. no; not so
  2. (bound form) not; un-
2 咎 jiù
  1. fault
  2. to blame
  3. to punish
  4. calamity
  5. misfortune
3 既往 jìwǎng
  1. past
  2. bygone
  3. the past