128 entries under adjective topic. ×

1
sustaining(important, significant, original, essential)
1
underived(rough, important, significant, original)
1
underlying(rough, important, significant, original)
1
vital(important, significant, original, essential)
1
yore
0
chief
0
highest
0
prehistorical
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APASmart Define. (2015). primordial thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/primordial/thesaurus/synonyms
ChicagoSmart Define. 2015. "primordial thesaurus" https://smartdefine.org/primordial/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, primordial thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/primordial/thesaurus/synonyms>.
MLASmart Define. "primordial thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/primordial/thesaurus/synonyms>