47
obsolete(adjective, feature, characteristic, trait, common)
46
antiquated(adjective, feature, characteristic, dull, plain)
46
old(adjective, feature, characteristic, dull, trait)
46
outmoded(adjective, feature, characteristic, dull, trait)
45
out-of-date(adjective, feature, characteristic, dull, trait)
44
dated(adjective, feature, characteristic, dull, plain)
43
antique(adjective, feature, characteristic, dull, trait)
43
old-fashioned(adjective, feature, characteristic, dull, trait)
42
archaic(adjective, feature, characteristic, dull, plain)
42
superannuated(adjective, feature, characteristic, trait, original)
41
passé(adjective, feature, characteristic, dull, plain)
34
demode(adjective, feature, characteristic, trait, last)
33
extinct(adjective, feature, characteristic, trait, odd)
13
vintage(adjective, plain, new, odd, old)
7
ancient(adjective, odd, old, traditional, primitive)
7
antediluvian(adjective, last, original, old, venerable)
7
dowdy(adjective, dull, new, odd, old)
7
fusty(adjective, new)
7
obsolescent(adjective, odd, old, primitive, unfashionable)
6
moth-eaten(adjective, last, original, tired, stale)
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APASmart Define. (2015). outdated thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/outdated/thesaurus/synonyms
ChicagoSmart Define. 2015. "outdated thesaurus" https://smartdefine.org/outdated/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, outdated thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/outdated/thesaurus/synonyms>.
MLASmart Define. "outdated thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/outdated/thesaurus/synonyms>