9
out of date(expression, adjective, idiom)
7
dead(adjective, odd, out, old, past)
7
dowdy(adjective, dull, new, odd, old)
6
bygone(adjective, plain, new, last, original)
6
antediluvian(adjective, original, old, obsolete, antiquated)
6
behind the times(expression, adjective, idiom, odd, current)
6
fusty(adjective, new)
6
moth-eaten(adjective, original, old, stale, shabby)
6
outworn(adjective, dead, odd, out, old)
5
expired(adjective, feature, characteristic, trait)
5
oldfangled(last, original, dead, odd, old)
4
date
4
defunct(adjective, dead, past, lost, previous)
4
disused
4
stale(adjective, last, original, outdated, antiquated)
3
aged
3
anachronistic
3
chronological
3
moldy(adjective, plain, dead, odd, out)
3
olden(adjective, original, dead, odd, old)
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APASmart Define. (2015). dated thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/dated/thesaurus/synonyms
ChicagoSmart Define. 2015. "dated thesaurus" https://smartdefine.org/dated/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, dated thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/dated/thesaurus/synonyms>.
MLASmart Define. "dated thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/dated/thesaurus/synonyms>