32 entries under major topic. ×

2
elementary(adjective, rough, important, significant, fresh)
2
first(adjective, rough, important, significant, fresh)
2
prime(adjective, important, significant, original, essential)
1
axiological(adjective, important, significant, original, essential)
1
axiomatic(adjective, important, significant, original, basic)
1
bottom(adjective, important, significant, original, essential)
1
bottom-line(adjective, important, significant, original, essential)
1
cardinal(adjective, important, significant, original, essential)
1
central(adjective, important, significant, original, essential)
1
constitutional(adjective, important, significant, original, essential)
1
constitutive(adjective, important, significant, original, basic)
1
crucial(adjective, important, significant, original, essential)
1
foundational(adjective, important, significant, fresh, original)
1
grass-roots(adjective, important, significant, original, essential)
1
indispensable(adjective, important, significant, original, essential)
1
integral(adjective, important, significant, original, essential)
1
intrinsic(adjective, important, significant, original, essential)
1
key(adjective, important, significant, original, essential)
1
meat-and-potatoes(adjective, important, significant, fresh, original)
1
necessary(adjective, important, significant, original, essential)
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APASmart Define. (2015). underived thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/underived/thesaurus/synonyms
ChicagoSmart Define. 2015. "underived thesaurus" https://smartdefine.org/underived/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, underived thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/underived/thesaurus/synonyms>.
MLASmart Define. "underived thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/underived/thesaurus/synonyms>