4
antiquity(noun, times)
2
past(noun, adjective, old, finished, up)
2
time immemorial(noun, times)
1
ages ago(expression, adjective, late, old, past)
1
ancient(adjective, late, old, past, previous)
1
back when(expression, adjective, late, old, past)
1
behind one(expression, adjective, late, old, past)
1
bygone(adjective, late, old, past, finished)
1
bypast(adjective, late, old, past, previous)
1
down memory lane(expression, adjective, idiom, late, old)
1
earlier(adjective, late, old, past, previous)
1
early(adjective, late, old, past, previous)
1
erstwhile(adjective, late, old, past, previous)
1
ex-(adjective, late, old, past, previous)
1
foregoing(adjective, late, old, past, previous)
1
former(adjective, late, old, past, previous)
1
gone-by(adjective, late, old, past, previous)
1
good old days(expression, idiom, late, old, past)
1
history
1
late(adjective, old, past, previous, former)
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APASmart Define. (2015). ancient history thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/ancient_history/thesaurus/synonyms
ChicagoSmart Define. 2015. "ancient history thesaurus" https://smartdefine.org/ancient_history/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, ancient history thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/ancient_history/thesaurus/synonyms>.
MLASmart Define. "ancient history thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/ancient_history/thesaurus/synonyms>