50 entries under original topic. ×

3
olden(adjective, odd, old, traditional)
2
crumbling(last, previous, other, outdated)
2
immemorial(last, previous, other, outdated)
2
oldfangled(adjective, last, odd, old)
2
time-worn(adjective, last, previous, other)
2
venerable(old, early, outdated, antique)
2
worn-out(tired, stale, outdated, rejected)
1
age-old(last, old, venerable, early)
1
decayed(weak, corrupt, last, exhausted)
1
early(old, venerable, antique, archaic)
1
late(last, other, invalid, redundant)
1
of old(expression, last, odd, old)
1
primeval(old, venerable, antique, archaic)
1
primordial(old, venerable, antique, archaic)
1
pristine(adjective, last, previous, other)
1
relic(old, venerable, antique, archaic)
1
remote(old, venerable, antique, archaic)
1
unoriginal(last, tired, stale, other)
0
aboriginal(last, previous, other, outdated)
0
cast-off(waste, last, previous, other)
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APASmart Define. (2016). obsolete thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/obsolete/thesaurus/synonyms
ChicagoSmart Define. 2016. "obsolete thesaurus" https://smartdefine.org/obsolete/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, obsolete thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/obsolete/thesaurus/synonyms>.
MLASmart Define. "obsolete thesaurus" 28 March 2016. Web. 25 September 2026. <https://smartdefine.org/obsolete/thesaurus/synonyms>