Onetime and Recurrent

Onetime

Onetime adjective - Happening only once.
Usage example: with any luck, that was a onetime mistake

Recurrent is an antonym for onetime.

Recurrent

Recurrent adjective - Occurring or appearing at intervals.

Onetime is an antonym for recurrent.

Cite this Source
Recurrent and Onetime. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/onetime/recurrent
Onetime & Recurrent. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/onetime/recurrent>.
Recurrent or Onetime. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/onetime/recurrent.
Google Ngram Viewer shows how "onetime" and "recurrent" have occurred on timeline