5 entries under ancient topic. ×

1
earliest(simple, basic, authentic, first, unsophisticated)
1
early(simple, basic, authentic, first, unsophisticated)
1
primeval(authentic, first, previous, archaic)
1
primitive(adjective, simple, original, basic, first)
1
pristine(simple, basic, authentic, first, unsophisticated)
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APASmart Define. (2013). underivative thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/underivative/thesaurus/synonyms
ChicagoSmart Define. 2013. "underivative thesaurus" https://smartdefine.org/underivative/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2013, underivative thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/underivative/thesaurus/synonyms>.
MLASmart Define. "underivative thesaurus" 28 June 2013. Web. 23 September 2026. <https://smartdefine.org/underivative/thesaurus/synonyms>