defunct

1 no longer existing a stack of brochures and a few faded placards are all that remain of the defunct organization Synonyms bygone, bypast, dead, extinct, departed, done, expired, gone, nonextant, vanishedRelated Words nonexistent; dying, faded, moribund; collapsed, fallen, overthrown; antiquated, dated, obsolete, passé; finished, lapsed, terminated; lost, missingNear Antonyms active, dynamic, thriving, vibrantAntonyms alive, existent, existing, extant, living

2 no longer living a defunct species that we know only through fossil remains Synonyms asleep, breathless, cold, deceased, dead, demised, departed, fallen, gone, late, lifeless, lowRelated Words extinct; dying, fading, moribund; stillborn; finished, lapsed, terminated; inanimate, insensate, nonlivingNear Antonyms animated; dynamic, lively, thriving, vibrant, vital, vivacious; active, functioning, operative, runningAntonyms alive, animate, breathing, going, live, living, quick