6
former(noun, adjective, last, original, past)
6
fundamental(adjective, harsh, violent, head, beginning)
6
inaugural(adjective, head, beginning, opening, original)
6
introductory(adjective, head, beginning, original, prime)
6
nascent(adjective, beginning)
5
Aboriginal
5
antiquated(adjective, last, original, old, venerable)
5
archaic(adjective, original, old, venerable, antique)
5
earliest(adjective, original, authentic, primitive, early)
5
germinal(adjective, beginning)
5
immemorial(adjective, last, original, old, outdated)
5
past(adjective, last, original, past, primitive)
5
previous(adjective, last, past, first, primary)
5
remote(original, high, old, venerable, obsolete)
4
basic(adjective, wild, head, beginning, original)
4
budding(adjective, beginning)
4
central
4
elemental
4
inceptive(adjective, head, beginning, original, prime)
4
inchoate
10 years ago|9.6k views|share |citing 
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>