4
ancillary(adjective, extra, supplementary)
3
dispensable(adjective, able, necessary)
3
gratuitous(adjective, reasonable, necessary)
3
nonessential(adjective, important, essential, needed)
3
not good
3
unnecessary(adjective, required)
2
extra(common, usual)
2
needless
2
optional
2
unessential
1
discretionary
1
excessive(adjective, moderate, low)
1
extraneous(adjective, unneeded)
1
in addition
1
inessential
1
spared
1
superfluous
1
surplus
1
unneeded
1
unwanted
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APASmart Define. (2015). needed thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/needed/thesaurus/antonyms
ChicagoSmart Define. 2015. "needed thesaurus" https://smartdefine.org/needed/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2015, needed thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/needed/thesaurus/antonyms>.
MLASmart Define. "needed thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/needed/thesaurus/antonyms>