1.
another day, at a later date, some other time
A future point in time that is not specified. Used when postponing or deferring something, or when referring to events that occurred at some point after a reference point.
Usage
A formal expression used in both spoken and written Japanese. Common in business communication and polite speech. As an adverb, it modifies verbs directly (後日連絡する). As a noun, it appears with particles (後日に, 後日になって).
Common patterns
- 後日改めて: on another occasion (polite set phrase)
- 後日連絡する: to contact at a later date
- 後日談: sequel, epilogue, follow-up story