32 entries under oldness topic. ×

22
primordial(adjective, violent, head, beginning, vicious)
20
primitive(adjective, start, violent, head, beginning)
16
prehistoric(adjective, original, high, fixed, primitive)
15
aboriginal(adjective, violent, head, beginning, vicious)
11
antediluvian(adjective, original, high, old, venerable)
8
beginning(adjective, head, beginning, original, prime)
7
prime(adjective, head, beginning, fresh, first)
5
archaic(adjective, original, old, venerable, antique)
4
patriarchal
3
ancestral
2
fossil
2
paleolithic(adjective, old)
2
preadamite
2
preglacial
2
protohistoric
1
antebellum
1
antemundane
1
classic
1
colonial
1
medieval
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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>