Synonyms|373Antonyms|99|Broader|11Narrower|2Related|693
5
vanished(adjective, past)
4
belated(adjective, past)
4
deceased(adjective, previous, obsolete, invalid, former)
4
fossil
4
gone by(verb, expression, adjective, phrasal verb, past)
4
musty(adjective, odd, old, primitive, unfashionable)
4
of yore(expression, adjective, original, old, past)
4
onetime(last, original, past, primitive, venerable)
4
outdated(adjective, plain, new, last, original)
4
prior(adjective, late, old, past, previous)
3
antecedent(noun, old, past, foretime)
3
earlier(adjective, adverb, late, old, past)
3
early(adjective, last, original, late, old)
3
elapsed
3
fusty(adjective, new)
3
has-been(noun, the past)
3
historical(adjective, past)
3
moldy(adjective, plain, dead, odd, out)
3
moth-eaten(original, old, venerable, outdated, antique)
3
prehistoric
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APASmart Define. (2015). bygone thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/bygone/thesaurus/synonyms
ChicagoSmart Define. 2015. "bygone thesaurus" https://smartdefine.org/bygone/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, bygone thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/bygone/thesaurus/synonyms>.
MLASmart Define. "bygone thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/bygone/thesaurus/synonyms>