One-off
One-off adjective - Being the one or ones of a class with no other members.
Onetime
Onetime adjective - Happening only once.
Usage example: with any luck, that was a onetime mistake
Mutual synonyms
Cite this Source
Onetime and One-off. (2016). Retrieved 2026, August 08, from https://thesaurus.plus/related/one-off/onetime
One-off & Onetime. N.p., 2016. Web. 08 Aug. 2026. <https://thesaurus.plus/related/one-off/onetime>.
Onetime or One-off. 2016. Accessed August 08, 2026. https://thesaurus.plus/related/one-off/onetime.