Synonyms and Antonyms of extinct

  1. no longer existing a few overgrown ruins are all that remain of that once mighty but now extinct civilization Synonyms bygone, bypast, dead, defunct, departed, done, expired, gone, nonextant, vanished Related Words nonexistent; dying, faded, moribund; collapsed, fallen, overthrown; antiquated, dated, obsolete, passé; finished, lapsed, terminated; lost, missing Near Antonyms active, dynamic, thriving, vibrant Antonyms alive, existent, existing, extant, living

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