60 entries under important topic. ×

21
organic(adjective, complete, total, full)
18
essential(adjective, characteristic, body, importance, material)
17
fundamental(noun, adjective, characteristic, part, body)
12
intrinsic(adjective, characteristic, significant, original)
11
elemental(adjective, complete, simple, natural)
8
basic(adjective, characteristic, body, material)
8
constitutional(adjective, material, natural, basic)
6
radical(original, whole, basic, vital)
5
elementary(adjective, characteristic, significant, natural)
5
indispensable(adjective, original, essential, critical)
4
requisite(adjective, significant, essential, critical)
3
necessary(adjective, body, material, significant)
2
cardinal(significant, original, essential, critical)
2
critical(adjective, serious, essential, basic)
2
imperative(essential, critical, basic, fundamental)
2
needed(adjective, significant, essential, critical)
2
primary(adjective, material, natural, basic)
2
prime(material, natural, original, basic)
2
required(essential, critical, basic, fundamental)
2
underlying(adjective, original, basic, vital)
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APASmart Define. (2016). integral thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/integral/thesaurus/synonyms
ChicagoSmart Define. 2016. "integral thesaurus" https://smartdefine.org/integral/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, integral thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/integral/thesaurus/synonyms>.
MLASmart Define. "integral thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/integral/thesaurus/synonyms>