68 entries under adjective topic. ×

6
original(important, significant, fresh, essential)
4
primary(rough, important, significant, original)
3
fundamental(simple, rough, important, original)
3
primitive(important, significant, original, essential)
2
authentic(first, previous, initial, earliest)
2
elementary(rough, important, significant, fresh)
2
first(rough, important, significant, fresh)
2
prime(important, significant, original, essential)
1
axiological(important, significant, original, essential)
1
axiomatic(important, significant, original, basic)
1
basal(important, significant, fresh, original)
1
basic(simple, rough, important, significant)
1
beginning(authentic, first, previous, initial)
1
bottom(important, significant, original, essential)
1
bottom-line(important, significant, original, essential)
1
cardinal(important, significant, original, essential)
1
central(important, significant, original, essential)
1
constitutional(important, significant, original, essential)
1
constitutive(important, significant, original, basic)
1
crucial(important, significant, original, essential)
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APASmart Define. (2015). underived thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/underived/thesaurus/synonyms
ChicagoSmart Define. 2015. "underived thesaurus" https://smartdefine.org/underived/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, underived thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/underived/thesaurus/synonyms>.
MLASmart Define. "underived thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/underived/thesaurus/synonyms>