Extinct
Extinct adjective - No longer existing.
Usage example: a few overgrown ruins are all that remain of that once mighty but now extinct civilization
Missing and extinct are semantically related. In some cases you can use "Missing" instead an adjective "Extinct".
Nearby Word: extinction
Mutual synonyms
Both words in one sentence
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For reference, the default mythological source of the language are the Dragons, long-extinct or missing beings who once casually wandered the supernal and all other realms and founded Atlantis accidentally by flying through some dreams once.
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The Missing Faction: The lost/extinct vampire clans: the Cappadocians and the Salubri.
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Too bad that by the time war ended, the Old Ones were already extinct or otherwise missing, leaving the Orks behind to plunder the galaxy.
Source: Always Chaotic Evil
Cite this Source
Missing and Extinct. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/extinct/missing
Extinct & Missing. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/extinct/missing>.
Missing or Extinct. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/extinct/missing.
Google Ngram Viewer shows how "extinct" and "missing" have occurred on timeline