let something pass

let (something) pass

To ignore, refuse to acknowledge, or choose not to retaliate against something someone else says or does. Those comments are very hurtful, but I'm going to let them pass because I know how frustrated you are. You have to let people's criticisms pass if you want to succeed in this industry.
See also: let, pass
Farlex Dictionary of Idioms.

let something ˈpass

pay no attention to something that somebody says or does because you think it is better not to argue about it or criticize it: He started saying terrible things about my mother again but I let it pass. It only makes things worse if I say something.
See also: let, pass, something
Farlex Partner Idioms Dictionary
See also:
  • let (something) pass
  • let pass
  • avenge (oneself) against (someone or something)
  • never have a good word to say about (someone of something)
  • never have a good word to say for (someone of something)
  • not have a good word to say about (someone of something)
  • not have a good word to say for (someone of something)
  • not/never have a good word to say for/about somebody/something
  • gossip
  • gossip about (someone or something)
References in classic literature
Both these pictures were very unpleasant, and even more so was a third picture, of husband and wife and friend; and the married people glancing at each other as though they were content to let something pass unquestioned, being themselves possessed of the deeper truth.
The Voyage Out
ARE you going to let something pass you by because you can't see how you're going to have enough time, space, money - whatever block you want to put on it?
YOUR HOROSCOPE
Reflecting on Persian Punch, who become one of the most popular Flat horses of all time, Elsworth added: 'He would win his races twice - he'd hit the front, let something pass him and them come back again.
Racing: Medallist carrying Jockey Club hopes
Virgo August 24 - Sept 23 ARE you going to let something pass you by because you can't see how you're going to have enough time, space, money - whatever block you want to put on it?
YOUR HOROSCOPE