73 entries under outdated topic. ×

6
musty(adjective, odd, old, primitive, unfashionable)
6
outworn(adjective, odd, old, primitive, unfashionable)
6
past(adjective, last, original, dead, odd)
6
unstylish(adjective, bad, cool, odd, old)
5
behind the times(expression, adjective, idiom, odd, current)
5
hackneyed(adjective, last, original, tired, stale)
4
moth-eaten(adjective, original, tired, old, stale)
4
primitive(adjective, last, original, odd, old)
4
rusty(adjective, last, original, old, venerable)
3
corny(tired, odd, old, stale, primitive)
3
old-hat(adjective, common, tired, odd, old)
3
olden(adjective, original, odd, old, traditional)
2
crumbling(last, original, previous, other)
2
immemorial(last, original, previous, other)
2
moldy(adjective, odd, old, primitive, unfashionable)
2
neglected(adjective, odd, old, primitive, unfashionable)
2
oldfangled(adjective, last, original, odd, old)
2
out of style(expression, idiom, odd, old, primitive)
2
rococo(adjective, odd, old, primitive, unfashionable)
2
time-worn(adjective, last, original, previous, other)
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APASmart Define. (2016). obsolete thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/obsolete/thesaurus/synonyms
ChicagoSmart Define. 2016. "obsolete thesaurus" https://smartdefine.org/obsolete/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, obsolete thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/obsolete/thesaurus/synonyms>.
MLASmart Define. "obsolete thesaurus" 28 March 2016. Web. 22 September 2026. <https://smartdefine.org/obsolete/thesaurus/synonyms>