55 entries under essential topic. ×

6
instinctive(adjective, characteristic, natural, automatic)
6
peculiar(adjective, characteristic, exact, certain, special)
6
radical(adjective, important, significant, original)
5
connate(adjective, characteristic, natural, basic)
5
individual(adjective, characteristic, exact, certain, natural)
5
material(noun, adjective, solid, physical, important)
4
elementary(adjective, characteristic, important, significant, natural)
4
profound(adjective, basic, intimate, fundamental)
3
particular(adjective, exact, certain, special, individual)
3
primary(adjective, important, significant, original)
2
cardinal(adjective, important, significant, original)
2
constitutive(adjective, important, significant, original)
2
core(adjective, original, basic, fundamental)
2
important(adjective, significant, original, substantial, serious)
2
indispensable(adjective, characteristic, important, significant, natural)
2
key(adjective, important, significant, original)
2
main(adjective, original, basic, absolute)
2
necessary(adjective, important, significant, original)
2
primitive(adjective, important, significant, original)
2
principal(adjective, important, significant, original)
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APASmart Define. (2016). intrinsic thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/intrinsic/thesaurus/synonyms
ChicagoSmart Define. 2016. "intrinsic thesaurus" https://smartdefine.org/intrinsic/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, intrinsic thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/intrinsic/thesaurus/synonyms>.
MLASmart Define. "intrinsic thesaurus" 31 March 2016. Web. 29 September 2026. <https://smartdefine.org/intrinsic/thesaurus/synonyms>