无意间

無意間
wúyìjiān
  1. inadvertently
  2. unintentionally

CEDICT

unintentionally; accidentally

Wiktionary

偶然中、不经意间。

重編國語辭典

偶然、并非意料之中

維基詞典

Entry Composition

1 无意 wúyì
  1. inadvertent
  2. accidental
  3. to have no intention of (doing sth)
2 间 jiān
  1. between
  2. among
  3. within a definite time or space
  4. room
  5. section of a room or lateral space between two pairs of pillars
  6. classifier for rooms

Related entries

不经意间 bùjīngyìjiān
  1. without paying attention
  2. without noticing
  3. unconsciously
  4. inadvertently
无心 wúxīn
  1. unintentionally
  2. not in the mood to
无意中 wúyìzhōng
  1. accidentally
  2. unintentionally
  3. unexpectedly
母親無意中握住了椅子。

Unconsciously my mom took hold of the chair.

Source: Tatoeba