88 entries under basic topic. ×

2
indispensable(adjective, characteristic, important, significant, natural)
2
key(adjective, important, significant, original, essential)
2
main(adjective, original, essential, absolute)
2
necessary(adjective, important, significant, original, essential)
2
primitive(adjective, important, significant, original, essential)
2
principal(adjective, important, significant, original, essential)
1
axiological(important, significant, original, vital)
1
axiomatic(important, significant, original, vital)
1
basal(adjective, important, significant, original, essential)
1
bottom(adjective, important, significant, original, essential)
1
bottom-line(adjective, important, significant, original, essential)
1
complete(adjective, utter, absolute, fundamental)
1
critical(adjective, original, essential, fundamental)
1
crucial(adjective, important, significant, original, essential)
1
first(adjective, important, significant, original)
1
foundational(important, significant, original, vital)
1
grass-roots(important, significant, original, vital)
1
latent(adjective, characteristic, natural, essential)
1
lurking(adjective, original, fundamental, hidden)
1
major(important, significant, original, vital)
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APASmart Define. (2016). intrinsic thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/intrinsic/thesaurus/synonyms
ChicagoSmart Define. 2016. "intrinsic thesaurus" https://smartdefine.org/intrinsic/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, intrinsic thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/intrinsic/thesaurus/synonyms>.
MLASmart Define. "intrinsic thesaurus" 31 March 2016. Web. 23 September 2026. <https://smartdefine.org/intrinsic/thesaurus/synonyms>