1
antebellum
1
apathetic
1
belated(adjective, dead, past, lost, previous)
1
burned up(expression, split, away, lacking, finished)
1
bypast
1
canceled
1
collapsed
1
complete
1
concluded
1
consumed(split, dead, away, lacking, finished)
1
corpse
1
dead and buried(expression, idiom)
1
dead and gone(expression, adjective, idiom, dead, death)
1
dead as nits(expression, idiom, death)
1
decamped(split, away, lacking, finished, absent)
1
decided
1
demoded(adjective, odd, old, primitive, unfashionable)
1
destruction
1
die out(verb, expression, phrasal verb, inexistence)
1
died out(expression, adjective, missing, nonexistent, vanished)
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APASmart Define. (2016). extinct thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/extinct/thesaurus/synonyms
ChicagoSmart Define. 2016. "extinct thesaurus" https://smartdefine.org/extinct/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, extinct thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/extinct/thesaurus/synonyms>.
MLASmart Define. "extinct thesaurus" 10 February 2016. Web. 20 September 2026. <https://smartdefine.org/extinct/thesaurus/synonyms>