2
last(past, previous, other, ex-)
2
no more(expression, idiom, the past)
2
old-hat(dead, odd, old, primitive, unfashionable)
2
one-time(adjective, last, late, old, past)
2
out(dead, unfashionable, antique, antiquated, outmoded)
2
outworn(dead, odd, out, old, primitive)
2
passed away(verb, phrasal verb, the past)
2
primeval(adjective, original, old, past, venerable)
2
primitive(adjective, last, original, odd, old)
2
rococo(adjective, odd, old, primitive, unfashionable)
2
run out(verb, phrasal verb, the past)
2
stale(original, dead, outdated, obsolete, antiquated)
2
superannuated(adjective, original, dead, odd, out)
2
then
2
time was(expression, adverb, late, old, past)
2
unfashionable(adjective, plain, last, original, dead)
2
unstylish(adjective, plain, odd, old, drab)
1
aboriginal(last, original, past, primitive, venerable)
1
age-old(last, original, old, venerable, outdated)
1
ages ago(expression, adjective, late, old, past)
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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>