2
venerable(adjective, original, old, past, primitive)
2
yore(noun, adjective, past)
1
Noachian
1
abecedarian
1
age-old(original, fixed, old, venerable, outdated)
1
aged(adjective, old)
1
ago(adjective, past)
1
ahead(adjective, head, beginning, opening, original)
1
alpha(adjective, beginning)
1
antebellum
1
antecedent(adjective, head, beginning, fresh, prime)
1
anteceding(adjective, past)
1
antemundane
1
antenatal
1
antepatriarchal
1
anterior(adjective, head, beginning, opening, original)
1
atavistic
1
azoic
1
baby(adjective, beginning)
1
basal
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APASmart Define. (2016). primeval thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/primeval/thesaurus/synonyms
ChicagoSmart Define. 2016. "primeval thesaurus" https://smartdefine.org/primeval/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, primeval thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/primeval/thesaurus/synonyms>.
MLASmart Define. "primeval thesaurus" 29 February 2016. Web. 24 September 2026. <https://smartdefine.org/primeval/thesaurus/synonyms>