发呆

發呆
fādāi
  1. to stare blankly
  2. to be stunned
  3. to be lost in thought

CEDICT

to stare blankly; to be in a daze (from fear, shock, or inattentiveness)

Wiktionary

心裡想着事情而出神的样子。如：「他不知在想什麽，话也不说，一个人坐在那裡发呆。」也作「发獃」。

重編國語辭典

心裡想着事情而出神的样子

維基詞典

Examples

望着天花板发呆,还不如读一读小说。

You might as well read a novel instead of staring at the ceiling.

Source: Tatoeba

Entry Composition

1 发 fā
  1. to send out
  2. to show (one's feeling)
  3. to issue
  4. to develop
  5. to make a bundle of money
  6. classifier for gunshots (rounds)
=2 呆 dāi
  1. foolish; stupid
  2. expressionless; blank
  3. variant of 待 dāi
=2 呆 dāi
  1. foolish; stupid (variant of 呆 dāi)
  2. expressionless; blank (variant of 呆 dāi)

Related entries

愣神儿 lèngshénr
  1. to stare blankly
  2. to be in a daze
直瞪瞪 zhídèngdèng to stare blankly
眼睁睁 yǎnzhēngzhēng
  1. to stare blankly
  2. to look on helplessly
  3. to look on unfeelingly
你以為我會眼睜睜地看著你去送死？我會閉上眼睛的。

Do you really think that I will simply watch you walk into trouble? I'd close my eyes.

Source: Tatoeba

睖 lèng
  1. to stare blankly
  2. to glare
愣 lèng
  1. to look distracted
  2. to stare blankly
  3. distracted
  4. blank
  5. (coll.) unexpectedly
  6. rash
  7. rashly
看呆 kàndāi
  1. to gape at
  2. to stare blankly
  3. to stare in rapture
  4. to stare in awe
犯傻 fànshǎ
  1. to do something stupid
  2. to pretend not to know
  3. to stare blankly
别犯傻。我做不到。

Don't be silly. I can't do it.

Source: Tatoeba

发懵 fāměng
  1. to feel dizzy
  2. to be confused
  3. to be at a loss
  4. to stare blankly
  5. Taiwan pr. fāméng
惊诧 jīngchà
  1. to be surprised
  2. to be amazed
  3. to be stunned