Synonyms|106Antonyms|61|Broader|4Narrower|0Related|137

2 entries under fixed topic. ×

13
primeval(adjective, original, primitive, early)
0
age-old(adjective, early, antique, primordial)
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APASmart Define. (2016). prehistoric thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/prehistoric/thesaurus/synonyms
ChicagoSmart Define. 2016. "prehistoric thesaurus" https://smartdefine.org/prehistoric/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, prehistoric thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/prehistoric/thesaurus/synonyms>.
MLASmart Define. "prehistoric thesaurus" 29 February 2016. Web. 23 September 2026. <https://smartdefine.org/prehistoric/thesaurus/synonyms>