Synonyms|106Antonyms|61|Broader|4Narrower|0Related|137
3
antebellum
3
dated
3
medieval
3
past
3
patriarchal
3
pristine
2
ancestral
2
immemorial(adjective, old, ancient)
2
northerly
2
once
2
original
2
outdated
2
outmoded
2
passe
2
preadamite
2
preglacial
2
prime
2
protohistoric
2
time period
1
Noachic
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APASmart Define. (2016). prehistoric thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/prehistoric/thesaurus/synonyms
ChicagoSmart Define. 2016. "prehistoric thesaurus" https://smartdefine.org/prehistoric/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, prehistoric thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/prehistoric/thesaurus/synonyms>.
MLASmart Define. "prehistoric thesaurus" 29 February 2016. Web. 24 September 2026. <https://smartdefine.org/prehistoric/thesaurus/synonyms>