Obsolete and Onetime

Obsolete

Obsolete adjective - Having passed its time of use or usefulness.

Onetime and obsolete are semantically related. In some cases you can use "Onetime" instead an adjective "Obsolete".

Onetime

Onetime adjective - Happening only once.

Obsolete and onetime are semantically related. Sometimes you can use "Obsolete" instead an adjective "Onetime".
Cite this Source
Onetime and Obsolete. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/obsolete/onetime
Obsolete & Onetime. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/obsolete/onetime>.
Onetime or Obsolete. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/obsolete/onetime.
Google Ngram Viewer shows how "obsolete" and "onetime" have occurred on timeline