1
imperative(important, capital, essential, critical, basic)
1
inborn
1
inbred
1
indispensable(important, capital, essential, critical, basic)
1
innate
1
instituting
1
life-or-death(important, essential, critical, basic, fundamental)
1
major(important, significant, original, basic, vital)
1
meat-and-potatoes(important, significant, original, essential, critical)
1
name(important, essential, critical, basic, fundamental)
1
name-of-the-game(important, essential, critical, basic, fundamental)
1
necessary(important, original, capital, essential, critical)
1
needed(important, capital, essential, critical, basic)
1
needful(adjective, essential)
1
nitty-gritty(important, essential, critical, basic, fundamental)
1
occasional
1
of great moment(adjective, importance, valuable, main, notable)
1
of importance(adjective, importance, valuable, main, notable)
1
on the map(adjective, importance, valuable, main, notable)
1
originative
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APASmart Define. (2015). constitutive thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/constitutive/thesaurus/synonyms
ChicagoSmart Define. 2015. "constitutive thesaurus" https://smartdefine.org/constitutive/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, constitutive thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/constitutive/thesaurus/synonyms>.
MLASmart Define. "constitutive thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/constitutive/thesaurus/synonyms>