Collapsed
Extinct
Extinct adjective - No longer existing.
Usage example: a few overgrown ruins are all that remain of that once mighty but now extinct civilization
Collapsed and extinct are semantically related. Sometimes you can use "Collapsed" instead an adjective "Extinct".
Nearby Word: extinction
Both words in one sentence
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Their civilization collapsed some time around the Cataclysm, however due to their longevity some remnant individuals managed to survive up to somewhat recent times, but by the time the game takes place in they are all extinct.
Source: Video Game / Eador - Clark Ashton Smith's Zothique is set 8 million years in the future, when the Sun is dying, civilization has long since collapsed, science has been forgotten, magic has returned, and humans are going extinct.
Source: After The End / Literature
Cite this Source
Extinct and Collapsed. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/collapsed/extinct
Collapsed & Extinct. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/collapsed/extinct>.
Extinct or Collapsed. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/collapsed/extinct.
Google Ngram Viewer shows how "collapsed" and "extinct" have occurred on timeline