44 entries under primary topic. ×

31
essential(adjective, characteristic, physical, material, important)
18
deep-seated(adjective, characteristic, natural, original, fixed)
17
constitutional(adjective, characteristic, close, start, important)
17
fundamental(adjective, characteristic, important, significant, natural)
15
elemental(adjective, characteristic, start, important, significant)
12
basic(adjective, characteristic, important, significant, natural)
8
underlying(adjective, important, significant, original, essential)
6
deep(adjective, original, essential, basic, intimate)
6
radical(adjective, important, significant, original, essential)
4
elementary(adjective, characteristic, important, significant, natural)
2
cardinal(adjective, important, significant, original, essential)
2
core(adjective, original, essential, basic, fundamental)
2
indispensable(adjective, characteristic, important, significant, natural)
2
key(adjective, important, significant, original, essential)
2
necessary(adjective, important, significant, original, essential)
2
primitive(adjective, important, significant, original, essential)
1
axiological(important, significant, original, basic, vital)
1
axiomatic(important, significant, original, basic, vital)
1
basal(adjective, important, significant, original, essential)
1
bottom(adjective, important, significant, original, essential)
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APASmart Define. (2016). intrinsic thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/intrinsic/thesaurus/synonyms
ChicagoSmart Define. 2016. "intrinsic thesaurus" https://smartdefine.org/intrinsic/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, intrinsic thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/intrinsic/thesaurus/synonyms>.
MLASmart Define. "intrinsic thesaurus" 31 March 2016. Web. 28 September 2026. <https://smartdefine.org/intrinsic/thesaurus/synonyms>