4
infant(adjective, beginning, authentic, first, previous)
4
natal
4
native(adjective, home, domestic)
4
olden(adjective, original, old, past, primitive)
4
patriarchal
4
polar
4
savage(adjective, wild, untamed)
3
ancestral
3
arctic
3
autochthonous(original, authentic, first, previous, local)
3
fetal(adjective, beginning)
3
formative(adjective, beginning)
3
inchoative
3
infantile(adjective, beginning)
3
initiative
3
initiatory
3
key(adjective, head, beginning, opening, original)
3
old-time(adjective, last, original, past, primitive)
3
primogenial(adjective, head, beginning, opening, original)
3
rudimental(beginning, authentic, first, previous, initial)
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APASmart Define. (2016). primeval thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/primeval/thesaurus/synonyms
ChicagoSmart Define. 2016. "primeval thesaurus" https://smartdefine.org/primeval/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, primeval thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/primeval/thesaurus/synonyms>.
MLASmart Define. "primeval thesaurus" 29 February 2016. Web. 23 September 2026. <https://smartdefine.org/primeval/thesaurus/synonyms>