愣头愣脑

愣頭愣腦
lèngtóulèngnǎo
  1. rash
  2. impetuous
  3. reckless

CEDICT

  1. rash; hotheaded; reckless
  2. slow in movement; obtuse; stunned

Wiktionary

  1. 粗鲁冒失的样子。如：「这孩子愣头愣脑的，居然把父亲心爱的花瓶摔破了。」也作「愣头磕脑」。
  2. 痴呆的样子。如：「这人看起来愣头愣脑的，大概受过什麽刺激吧！」也作「愣头磕脑」。

重編國語辭典

Entry Composition

1 愣 lèng
  1. to look distracted
  2. to stare blankly
  3. distracted
  4. blank
  5. (coll.) unexpectedly
  6. rash
  7. rashly
=2 头 tóu
  1. head
  2. hair style
  3. the top
  4. end
  5. beginning or end
  6. a stub
  7. remnant
  8. chief
  9. boss
  10. side
  11. aspect
  12. first
  13. leading
  14. classifier for pigs or livestock

classifier: 個
=2 头 tou suffix for nouns
3 愣 lèng
  1. to look distracted
  2. to stare blankly
  3. distracted
  4. blank
  5. (coll.) unexpectedly
  6. rash
  7. rashly
4 脑 nǎo
  1. brain
  2. mind
  3. head
  4. essence

Related entries

冒失 màoshi
  1. rash
  2. impudent
操切 cāoqiè
  1. rash
  2. hasty
狂躁 kuángzào
  1. rash
  2. impetuous
  3. irritable
疹子 zhěnzi rash
二杆子 èrgānzi
  1. hot-tempered
  2. rash
  3. hot-tempered person
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