496 entries under adjective topic. ×

20
momentous(feature, state, characteristic, importance)
19
innate(characteristic, body, reasonable, material)
19
chief(importance, big, important, significant)
19
prerequisite(noun, form, fix, pass)
19
material(noun, drop, body, physical)
17
central(important, significant, original, basic)
17
pivotal(feature, state, characteristic, important)
16
cardinal(importance, important, significant, original)
16
inborn(characteristic, reasonable, common, ordinary)
16
substantial(physical, importance, material, big)
15
constitutive(importance, important, valuable, surface)
15
deep-seated(characteristic, natural, original, basic)
15
integral(characteristic, body, importance, material)
14
core(support, action, base, importance)
14
critical(severe, big, important, significant)
14
inbred(characteristic, natural, individual, basic)
14
underlying(simple, plain, important, significant)
13
constitutional(important, natural, basic, surface)
13
leading(feature, state, characteristic, importance)
13
must(noun, right, want, need)
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APASmart Define. (2016). essential thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/essential/thesaurus/synonyms
ChicagoSmart Define. 2016. "essential thesaurus" https://smartdefine.org/essential/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, essential thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/essential/thesaurus/synonyms>.
MLASmart Define. "essential thesaurus" 31 March 2016. Web. 22 September 2026. <https://smartdefine.org/essential/thesaurus/synonyms>