8
fundamental(noun, adjective, part, decrease, important)
8
less
4
organic(adjective, unimportant, inorganic)
3
essential(noun, adjective, decrease, common, usual)
3
necessary(adjective, common, usual, unimportant, trivial)
3
niggardly
2
main(adjective, common, inferior, usual, principal)
2
need
2
needed(adjective, common, usual)
2
normal(adjective, common, usual)
1
basic(noun, adjective, decrease, common, insignificant)
1
integral(adjective, common, usual)
1
necessity(noun, decrease)
1
as part of(adverb, separate, single, alone, apart)
1
key details(adjective, insignificant, unimportant, minor, subordinate)
1
basically(adverb, fundamentally, intrinsically)
1
poor
1
prerequisite(noun, condition, necessity, nonessential)
1
quintessence(noun, essence, core, outside)
1
required
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APASmart Define. (2016). extra thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/extra/thesaurus/antonyms
ChicagoSmart Define. 2016. "extra thesaurus" https://smartdefine.org/extra/thesaurus/antonyms (accessed September 20, 2026).
HarvardSmart Define 2016, extra thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/extra/thesaurus/antonyms>.
MLASmart Define. "extra thesaurus" 30 March 2016. Web. 20 September 2026. <https://smartdefine.org/extra/thesaurus/antonyms>