1.
by chance; accidentally; coincidentally
in an unplanned or unexpected manner, without intention or design
The adverbial form of 偶然 (coincidence). Can also be used without に as an adverb (偶然会った is equally common). The に form emphasizes the manner in which something happened.
Common collocations
- 偶然に出会う: to meet by chance
- 偶然に見つける: to find accidentally
- 偶然に知る: to learn by chance
- 偶然の一致: coincidence, chance match
Similar words
- たまたま: by chance, happen to — more casual and spoken; often implies a lucky or unlucky coincidence
- 思いがけず: unexpectedly — emphasizes the surprise element
- 図らずも: unexpectedly, by a twist of fate — literary, often for fortunate or ironic coincidences
Common patterns
Both 偶然 and 偶然に function as adverbs. The form without に is slightly more common in casual speech.