Extinct
Extinct adjective - No longer existing.
Past is a synonym for extinct in ceased to exist topic. In some cases you can use "Past" instead an adjective "Extinct", when it comes to topics like preceding.
Nearby Word: extinction
Past
Past adjective - Having been such at some previous time.
Usage example: a past editor of the newspaper
Mutual synonyms
Both words in one sentence
- Lost Technology: In the "Ask Luna" blog, Luna notes that most of the wonders that mages created in past ages was made possible due to the slave labor of magical creatures that are now all-but extinct and gateways to another world call Alata that are now closed.
Source: Literature / Alex Verus - Tash Arranda of Galaxy of Fear was fascinated by and idolized the then-extinct Jedi Order, reading everything about it that got past or around The Empire's censorship.
Source: Ascended Fanboy - In Star Trek IV: The Voyage Home, Spock refers to whales becoming extinct in the past tense.
Source: Suspiciously Specific Tense
Cite this Source
Past and Extinct. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/extinct/past
Extinct & Past. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/extinct/past>.
Past or Extinct. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/extinct/past.
Google Ngram Viewer shows how "extinct" and "past" have occurred on timeline