こないだ

こないだ
adverb
the other day; recently; a while ago
1. the other day, recently, a while ago
A colloquial way of referring to a recent past time. Contraction of この(あいだ) (このあいだ).
こないだはありがとう。
Thanks for the other day.
こないだ()った(ほん)、もう()んだ?
Have you read the book you bought the other day yet?
こないだ駅前(えきまえ)偶然(ぐうぜん)田中(たなか)さんに()ったんだよ。
I ran into Tanaka-san in front of the station the other day.

Colloquial contraction of この(あいだ) (the other day). Very common in casual spoken Japanese.

COMMON PATTERNS:

  • こないだの~: the ~ from the other day
  • こないだは~: regarding the other day (used to thank or apologize for something recent)
  • こないだから: since the other day

FORMALITY LEVELS:

  • こないだ: casual (conversation only)
  • この(あいだ): neutral (spoken and written)
  • 先日(せんじつ): formal (business, letters, polite speech)

USAGE:
Refers to a vague recent past — anywhere from a few days to a few weeks ago. Not appropriate for formal writing or business contexts. Often used as an opener: こないだね… (You know, the other day…).