1
grown old(expression, odd, old, primitive, unfashionable)
1
had it
1
has-beens
1
in oblivion(expression, adjective, dead, past, lost)
1
in vogue
1
indolent
1
inoperative(dull, cold, tired, lifeless, lost)
1
inorganic(adjective, lifeless, organic, nonliving)
1
insensate(dull, cold, lifeless, nonliving, inorganic)
1
kaputt
1
kayoed
1
lacking(split, away, finished, absent, left)
1
left(split, away, lacking, finished, absent)
1
lost to sight(expression, idiom)
1
lost to view(expression, idiom)
1
mineral(dull, cold, lifeless, nonliving, inorganic)
1
motionless(adjective, dull, cold, lifeless, nonliving)
1
moved(split, away, lacking, finished, absent)
1
musty(adjective, odd, old, primitive, unfashionable)
1
neglected(adjective, odd, old, primitive, unfashionable)
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APASmart Define. (2016). extinct thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/extinct/thesaurus/synonyms
ChicagoSmart Define. 2016. "extinct thesaurus" https://smartdefine.org/extinct/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, extinct thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/extinct/thesaurus/synonyms>.
MLASmart Define. "extinct thesaurus" 10 February 2016. Web. 21 September 2026. <https://smartdefine.org/extinct/thesaurus/synonyms>