4
old-time(adjective, last, original, odd, old)
4
old times(noun, expression, idiom)
4
past times(noun, expression, idiom)
4
since(adverb, preposition, conjunction, because)
4
then
4
time(noun, period, length)
4
vanished(split, away, lacking, finished, absent)
3
ancient history(expression, adjective, idiom, old, finished)
3
away(adjective, adverb, split, quit, lost)
3
bygone days(noun, expression, idiom, time)
3
career
3
completed(adjective, finished, up, preceding, done)
3
dated(adjective, last, original, odd, old)
3
days of old(noun, expression, idiom, antiquity, experiences)
3
disused
3
experiences(noun, practice, antiquity)
3
foregone
3
foretime
3
formerly
3
good old days(noun, expression, adjective, idiom, old)
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APASmart Define. (2015). past thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/past/thesaurus/synonyms
ChicagoSmart Define. 2015. "past thesaurus" https://smartdefine.org/past/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, past thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/past/thesaurus/synonyms>.
MLASmart Define. "past thesaurus" 25 May 2015. Web. 24 September 2026. <https://smartdefine.org/past/thesaurus/synonyms>