置之脑后

置之腦後
zhìzhīnǎohòu
  1. to banish from one's thoughts
  2. to ignore
  3. to take no notice

CEDICT

不注意，不放在心上。

重編國語辭典

将事情不放在心上，不予理会

維基詞典

Entry Composition

1 置 zhì
  1. to install
  2. to place
  3. to put
  4. to buy
2 之 zhī
  1. (possessive particle, literary equivalent of 的 de)
  2. him
  3. her
  4. it
3 脑后 nǎohòu
  1. the back of the head
  2. (fig.) the back of one's mind

Related entries

不予理会 bùyǔlǐhuì
  1. to ignore
  2. to brush off
  3. to dismiss
  4. to pay no attention to
书页翻动之间，我们可以对书中的人物不予理会而不伤及他们的情感。

By turning the page, we can dismiss the characters in a book without fear of hurting their feelings.

Source: Tatoeba

放任 fàngrèn
  1. to ignore
  2. to let alone
  3. to indulge
她太放任她的孩子们了。

She lets her children have their own way too much.

Source: Tatoeba

漠视 mòshì
  1. to ignore
  2. to neglect
  3. to treat with contempt
你不能漠視你的責任。

You are not to neglect your duty.

Source: Tatoeba

不加理睬 bùjiālǐcǎi
  1. without giving due consideration
  2. to ignore
  3. to overlook
看着不管 kànzhebùguǎn
  1. to stand by and pay no heed
  2. to ignore
置之不理 zhìzhībùlǐ
  1. to pay no heed to (idiom)
  2. to ignore
  3. to brush aside
不去理 bùqùlǐ
  1. not to pay attention to
  2. to leave sth as it is
  3. to ignore
不问 bùwèn
  1. to pay no attention to
  2. to disregard
  3. to ignore
  4. to let go unpunished
  5. to let off
你不问我，我就不会说谎话。

Don't ask, and I won't lie.

Source: Tatoeba

忽 hū
  1. to neglect
  2. to overlook
  3. to ignore
  4. suddenly
不理 bùlǐ
  1. to refuse to acknowledge
  2. to pay no attention to
  3. to take no notice of
  4. to ignore
不理她。

Don't pay attention to her.

Source: Tatoeba