Synonyms|489Antonyms|136|Broader|5Narrower|8Related|718
14
necessary(adjective, reasonable)
14
essential
11
critical
8
important(adjective, reasonable)
5
basic
4
vital
3
indispensable(adjective, necessary)
3
key
3
deficient(adjective, inadequate, imperfect)
2
niggardly
2
reasonable(adjective, reality)
2
focal
2
imperative
1
fundamental
1
valuable
1
chief
1
immanent
1
inherent
1
intrinsic
1
requisite
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APASmart Define. (2016). superfluous thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/superfluous/thesaurus/antonyms
ChicagoSmart Define. 2016. "superfluous thesaurus" https://smartdefine.org/superfluous/thesaurus/antonyms (accessed September 21, 2026).
HarvardSmart Define 2016, superfluous thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/superfluous/thesaurus/antonyms>.
MLASmart Define. "superfluous thesaurus" 9 February 2016. Web. 21 September 2026. <https://smartdefine.org/superfluous/thesaurus/antonyms>