34
redundant(adjective, extraordinary, new, spare, fresh)
33
surplus(noun, adjective, extraordinary, new, spare)
32
extra(noun, adjective, spare, unreasonable, luxury)
26
excessive(adjective, spare, unreasonable, extreme, useless)
22
unnecessary(adjective, extraordinary, new, spare, fresh)
22
excess(noun, adjective, spare, extreme, extra)
21
needless(adjective, extraordinary, new, spare, fresh)
18
spare(verb, adjective, extraordinary, new, fresh)
16
supererogatory(adjective, spare, extreme, reserve, casual)
15
supernumerary(adjective, extraordinary, new, spare, fresh)
14
unneeded(adjective, extraordinary, new, spare, fresh)
13
dispensable(adjective, spare, extreme, unimportant, able)
12
unessential(adjective, extra, unwarranted, surplus, unnecessary)
12
gratuitous(adjective, spare, extreme, useless, extra)
10
useless(adjective, waste, spare, extreme, extra)
10
inessential(adjective, extraordinary, new, spare, fresh)
10
unwanted(adjective, waste, spare, extreme, reserve)
9
additional(adjective, extraordinary, new, spare, fresh)
9
non-essential
8
otiose(adjective, useless)
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APASmart Define. (2016). superfluous thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/superfluous/thesaurus/synonyms
ChicagoSmart Define. 2016. "superfluous thesaurus" https://smartdefine.org/superfluous/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, superfluous thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/superfluous/thesaurus/synonyms>.
MLASmart Define. "superfluous thesaurus" 9 February 2016. Web. 20 September 2026. <https://smartdefine.org/superfluous/thesaurus/synonyms>