35 entries under natural topic. ×

36
organic(adjective, important, basic, vital)
21
innate(adjective, characteristic, body, start, material)
19
inherent(adjective, characteristic, close, body, start)
18
intrinsic(adjective, characteristic, close, start, important)
14
native(adjective, start, basic, instinctive)
14
congenital(adjective, characteristic, start, fixed)
13
inborn(adjective, characteristic, start, fixed)
12
essential(adjective, important, basic, surface)
11
inbred(adjective, characteristic, start, fixed)
11
fundamental(adjective, important, essential, basic)
8
indigenous(adjective, start, complete, be)
8
integral(adjective, material, important, basic)
7
structural(adjective, material, important, basic)
6
basic(adjective, important, essential, surface)
6
deep-seated(adjective, characteristic, original, fixed)
6
elemental(adjective, characteristic, body, start, material)
6
primary(adjective, body, material, important, significant)
5
connate(adjective, characteristic, essential, basic)
4
anatomical(adjective, material, basic, living)
4
vital(adjective, top, important, basic)
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APASmart Define. (2015). constitutional thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/constitutional/thesaurus/synonyms
ChicagoSmart Define. 2015. "constitutional thesaurus" https://smartdefine.org/constitutional/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, constitutional thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/constitutional/thesaurus/synonyms>.
MLASmart Define. "constitutional thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/constitutional/thesaurus/synonyms>