66 entries under adjective topic. ×

56
old-fashioned(feature, characteristic, trait, new)
54
obsolete(feature, characteristic, trait, common)
50
old(feature, characteristic, dull, trait)
47
antiquated(feature, characteristic, dull, trait)
47
antique(feature, characteristic, dull, trait)
45
dated(verb, feature, characteristic, dull)
45
passe(feature, characteristic, dull, trait)
45
archaic(feature, characteristic, dull, trait)
43
superannuated(feature, characteristic, trait, original)
42
demode(feature, characteristic, trait, last)
42
out-of-date(feature, characteristic, dull, trait)
42
outdated(feature, characteristic, dull, trait)
40
extinct(feature, characteristic, trait, dead)
13
vintage(plain, new, odd, old)
10
dead(cold, odd, old, primitive)
10
unfashionable(last, original, odd, square)
9
ancient(odd, old, past, traditional)
9
out(possible, unfashionable, antiquated, gone)
8
dowdy(dull, new, vulgar, odd)
8
old hat(expression, idiom, overfamiliar)
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APASmart Define. (2016). outmoded thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/outmoded/thesaurus/synonyms
ChicagoSmart Define. 2016. "outmoded thesaurus" https://smartdefine.org/outmoded/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, outmoded thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/outmoded/thesaurus/synonyms>.
MLASmart Define. "outmoded thesaurus" 12 February 2016. Web. 22 September 2026. <https://smartdefine.org/outmoded/thesaurus/synonyms>