4
date(verb, obsolete, obsolesce)
4
discontinued(adjective, no longer available)
4
forgotten
4
lost(adjective, destroyed, extinct)
4
moth-eaten(adjective, original, tired, old, stale)
4
obsolesce(verb, fall, new, retire, date)
4
out-dated
4
out-of-fashion(adjective, bad, cool, awesome, unfashionable)
4
primitive(adjective, last, original, odd, old)
4
rusty(adjective, last, original, old, venerable)
4
tired
3
cheesy(adjective, bad, cool, awesome, unfashionable)
3
corny(tired, odd, old, stale, primitive)
3
deceased
3
deserted(adjective, disused)
3
elapsed
3
exploded(oldness, the past)
3
fashionless(adjective, bad, cool, awesome, unfashionable)
3
fossil(noun, adjective, vogue)
3
gone by(verb, phrasal verb, oldness, the past)
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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>