(ぐうぜん)

ぐうぜん
noun / adverb / na-adjective
by chance, coincidence, accident
1. chance, coincidence, accident
Something that happens without planning or intention.
それ偶然(ぐうぜん)一致(いっち)だ。
That's a coincidence.
偶然(ぐうぜん)ではなく必然(ひつぜん)だ。
It's not coincidence but inevitability.
A series of coincidences led to the accident.
2. by chance, accidentally, unexpectedly
In an unplanned manner.
I happened to meet a friend at the station.
By coincidence, we were reading the same book.
By chance, I ran into an old classmate while traveling, and was so surprised that I couldn't help but call out to them.

偶然(ぐうぜん) can function as a noun (coincidence), adverb (by chance), or na-adjective (accidental). It describes events that happen without planning or intention.

AS ADVERB:

  • 偶然(ぐうぜん)()った (met by chance)
  • 偶然(ぐうぜん)()つけた (found by accident)
  • 偶然(ぐうぜん)にも〜 (by coincidence ~ — adds emphasis)

AS NOUN:

  • 偶然(ぐうぜん)一致(いっち) (coincidence)
  • 偶然(ぐうぜん)(かさ)なる (coincidences pile up)
  • 偶然(ぐうぜん)(たよ)る (to rely on chance)

AS NA-ADJECTIVE:

  • 偶然(ぐうぜん)出会(であ)い (a chance encounter)

CONTRAST:

  • 偶然(ぐうぜん): by chance, accidental
  • 必然(ひつぜん): inevitable, necessary (direct antonym)
  • たまたま: by chance, it just happened that (more casual, adverb only)