Synonyms|292Antonyms|104|Broader|1Narrower|1Related|461
7
organic(adjective, unimportant, inorganic)
5
essential(adjective, important, vital)
4
symbiotic
4
world class
3
necessary(adjective, unimportant, trivial, essential)
3
vital(adjective, essential)
2
basic(adjective, insignificant, fundamental, intricate, elementary)
2
constituent
2
constitutional
2
crucial(adjective, important, critical)
2
imperative(adjective, necessary)
2
indispensable
2
main(adjective, common, inferior, utter, absolute)
2
mutually beneficial
2
necessity
2
needed(adjective, unimportant, necessary)
2
primary
2
required
2
requirement
2
requisite
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APASmart Define. (2015). inessential thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/inessential/thesaurus/antonyms
ChicagoSmart Define. 2015. "inessential thesaurus" https://smartdefine.org/inessential/thesaurus/antonyms (accessed September 21, 2026).
HarvardSmart Define 2015, inessential thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/inessential/thesaurus/antonyms>.
MLASmart Define. "inessential thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/inessential/thesaurus/antonyms>