208 entries under basic topic. ×

19
innate(adjective, characteristic, body, reasonable, material)
19
chief(adjective, importance, big, important, significant)
19
prerequisite(noun, adjective, form, fix, pass)
19
material(noun, adjective, drop, body, physical)
18
necessity(noun, condition, want, need, heart)
17
central(adjective, important, significant, original)
16
cardinal(adjective, importance, important, significant, original)
16
inborn(adjective, characteristic, reasonable, common, ordinary)
15
deep-seated(adjective, characteristic, natural, original)
15
integral(adjective, characteristic, body, importance, material)
15
requirement(noun, form, fix, pass, position)
14
core(adjective, support, action, base, importance)
14
critical(adjective, severe, big, important, significant)
14
inbred(adjective, characteristic, natural, individual)
14
underlying(adjective, simple, plain, important, significant)
13
constitutional(adjective, important, natural, surface)
13
leading(adjective, feature, state, characteristic, importance)
13
must(noun, adjective, right, want, need)
13
needed(adjective, set, important, significant, capital)
13
real(adjective, material, natural, genuine)
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APASmart Define. (2016). essential thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/essential/thesaurus/synonyms
ChicagoSmart Define. 2016. "essential thesaurus" https://smartdefine.org/essential/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, essential thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/essential/thesaurus/synonyms>.
MLASmart Define. "essential thesaurus" 31 March 2016. Web. 21 September 2026. <https://smartdefine.org/essential/thesaurus/synonyms>