27 entries under primitive topic. ×

8
olden(adjective, original, old, venerable)
6
antediluvian(adjective, last, original, venerable)
5
antique(adjective, last, original, venerable)
5
venerable(adjective, original, past, outdated)
4
early(adjective, last, original, venerable)
4
remote(last, original, past, venerable)
3
once(last, original, past, venerable)
2
erstwhile(last, original, past, venerable)
2
former(last, original, past, venerable)
2
late(last, original, past, venerable)
2
of old(expression, last, original, outdated)
2
old-time(last, original, past, venerable)
2
onetime(last, original, past, venerable)
2
past(last, original, venerable, outdated)
2
primordial(adjective, last, original, past)
2
pristine(adjective, last, original, venerable)
2
quondam(last, original, past, venerable)
2
sometime(last, original, past, venerable)
1
aboriginal(last, original, past, venerable)
1
bygone(last, original, past, venerable)
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APASmart Define. (2016). immemorial thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/immemorial/thesaurus/synonyms
ChicagoSmart Define. 2016. "immemorial thesaurus" https://smartdefine.org/immemorial/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, immemorial thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/immemorial/thesaurus/synonyms>.
MLASmart Define. "immemorial thesaurus" 29 February 2016. Web. 25 September 2026. <https://smartdefine.org/immemorial/thesaurus/synonyms>