50 entries under original topic. ×

59
archaic(adjective, feature, characteristic, trait, last)
58
outdated(adjective, feature, characteristic, trait, common)
56
antiquated(adjective, feature, characteristic, trait, common)
55
dated(adjective, feature, characteristic, trait, last)
53
outmoded(adjective, feature, characteristic, trait, common)
51
antique(adjective, feature, characteristic, trait, last)
48
passé(adjective, feature, characteristic, bad, cool)
43
superannuated(adjective, feature, characteristic, trait)
42
out-of-date(adjective, feature, characteristic, trait, common)
38
demode(adjective, feature, characteristic, trait, last)
14
antediluvian(adjective, last, old, venerable)
9
unfashionable(adjective, bad, cool, last)
9
bygone(adjective, last, dead, odd)
8
old-time(adjective, last, odd, old)
7
stale(adjective, last, tired, other)
6
past(adjective, last, dead, odd)
5
hackneyed(adjective, last, tired, stale)
4
moth-eaten(adjective, tired, old, stale)
4
primitive(adjective, last, odd, old)
4
rusty(adjective, last, old, venerable)
<123>
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APASmart Define. (2016). obsolete thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/obsolete/thesaurus/synonyms
ChicagoSmart Define. 2016. "obsolete thesaurus" https://smartdefine.org/obsolete/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, obsolete thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/obsolete/thesaurus/synonyms>.
MLASmart Define. "obsolete thesaurus" 28 March 2016. Web. 23 September 2026. <https://smartdefine.org/obsolete/thesaurus/synonyms>