(ぐうぜん)

ぐうぜんに
adverb
by chance; accidentally; coincidentally
abstract
1. by chance; accidentally; coincidentally
in an unplanned or unexpected manner, without intention or design
偶然(ぐうぜん)旧友(きゅうゆう)()った
I ran into an old friend by chance.
偶然(ぐうぜん)その(みせ)()つけて(はい)ってみた。
I happened to find the shop and decided to go in.
偶然(ぐうぜん)(おな)電車(でんしゃ)()()わせたきっかけ(した)しくなった
We became close after coincidentally being on the same train.

The adverbial form of 偶然(ぐうぜん) (coincidence). Can also be used without as an adverb (偶然(ぐうぜん)()った is equally common). The form emphasizes the manner in which something happened.

Common collocations

Similar words

  • たまたま: by chance, happen to — more casual and spoken; often implies a lucky or unlucky coincidence
  • (おも)いがけず: unexpectedly — emphasizes the surprise element
  • (はか): unexpectedly, by a twist of fate — literary, often for fortunate or ironic coincidences

Common patterns

Both 偶然(ぐうぜん) and 偶然(ぐうぜん)に function as adverbs. The form without is slightly more common in casual speech.