Extinct
Extinct adjective - No longer existing.
Usage example: a few overgrown ruins are all that remain of that once mighty but now extinct civilization
Obsolete is a synonym for extinct. In some cases you can use "Obsolete" instead an adjective "Extinct". archaic substitute
Nearby Word: extinction
Obsolete
Obsolete adjective - Having passed its time of use or usefulness.
Usage example: I was told my old printer is obsolete and I can't get replacement parts
Extinct is a synonym for obsolete in in vogue topic. You can use "Extinct" instead an adjective "Obsolete", if it concerns topics such as outdated, no longer in use. archaic substitute
Mutual synonyms
Both words in one sentence
- The book details the 'history' of her era (22nd and + centuries) and as her recount of history goes on, we discover that, in short, the robots won and humans are extinct and/or obsolete.
Source: The All-Concealing I
Cite this Source
Obsolete and Extinct. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/extinct/obsolete
Extinct & Obsolete. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/extinct/obsolete>.
Obsolete or Extinct. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/extinct/obsolete.
Google Ngram Viewer shows how "extinct" and "obsolete" have occurred on timeline