Synonyms|665Antonyms|174|Broader|10Narrower|15Related|812
1
secondary(adjective, important, useful, unimportant, trivial)
1
subordinate(adjective, strong, main, lesser, supplementary)
1
supererogatory
1
supplementary
1
trivial(adjective, substantial, unimportant, serious)
1
uncalled-for
1
unneccesary
1
unwanted
1
unwarranted
0
alien
0
worthless
0
collateral(important, major)
0
conscious
0
cream
0
deadwood
0
deliberate
0
discarded
0
dubious
0
election
0
evadable
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APASmart Define. (2015). necessary thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/necessary/thesaurus/antonyms
ChicagoSmart Define. 2015. "necessary thesaurus" https://smartdefine.org/necessary/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2015, necessary thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/necessary/thesaurus/antonyms>.
MLASmart Define. "necessary thesaurus" 2 November 2015. Web. 24 September 2026. <https://smartdefine.org/necessary/thesaurus/antonyms>