不注意

bùzhùyì
  1. thoughtless
  2. not pay attention to

CEDICT

Entry Composition

1 不 bù
  1. no; not so
  2. (bound form) not; un-
2 注意 zhùyì to take note of; to pay attention to

Related entries

不周 bùzhōu
  1. not satisfactory
  2. thoughtless
  3. inconsiderate
没心没肺 méixīnméifèi
  1. simple-minded
  2. thoughtless
  3. heartless
  4. nitwitted
粗心 cūxīn
  1. careless
  2. thoughtless
她为自己的粗心感到羞耻。

She was ashamed of herself for her carelessness.

Source: Tatoeba

着三不着两 zháosānbùzháoliǎng
  1. scatter-brained
  2. thoughtless
混 hùn
  1. to mix
  2. to mingle
  3. muddled
  4. to drift along
  5. to muddle along
  6. to pass for
  7. to get along with sb
  8. thoughtless
  9. reckless
油和水不能混在一起。

Oil does not mix with water.

Source: Tatoeba