Onetime
Onetime adjective - Happening only once.
Usage example: with any luck, that was a onetime mistake
One-off
One-off adjective - Being the one or ones of a class with no other members.
Mutual synonyms
Cite this Source
One-off and Onetime. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/onetime/one-off
Onetime & One-off. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/onetime/one-off>.
One-off or Onetime. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/onetime/one-off.