1
ancient history(expression, adjective, late, old, past)
1
antediluvian(last, original, past, primitive, venerable)
1
antiquated(adjective, last, original, dead, past)
1
antique(last, original, past, primitive, venerable)
1
archaic(adjective, last, original, dead, past)
1
behind one(expression, adjective, late, old, past)
1
belated(adjective, dead, past, lost, previous)
1
cast-off(last, original, past, primitive, venerable)
1
crumbling(last, original, past, venerable, outdated)
1
dated(adjective, last, original, dead, past)
1
dead(adjective, past, lost, previous, former)
1
decayed(last, original, past, venerable, outdated)
1
deceased(adjective, previous, former)
1
defunct(adjective, dead, past, lost, previous)
1
departed(adjective, dead, old, past, lost)
1
done(last, original, past, venerable, outdated)
1
down memory lane(expression, idiom, dead, late, old)
1
ex
1
fore
1
forgotten(adjective, dead, past, lost, previous)
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APASmart Define. (2015). quondam thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/quondam/thesaurus/synonyms
ChicagoSmart Define. 2015. "quondam thesaurus" https://smartdefine.org/quondam/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, quondam thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/quondam/thesaurus/synonyms>.
MLASmart Define. "quondam thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/quondam/thesaurus/synonyms>