Synonyms|489Antonyms|136|Broader|5Narrower|8Related|718

101 entries under extra topic. ×

34
redundant(adjective, extraordinary, new, spare, fresh)
33
surplus(noun, adjective, extraordinary, new, spare)
26
excessive(adjective, spare, unreasonable, extreme, useless)
22
unnecessary(adjective, extraordinary, new, spare, fresh)
22
excess(noun, adjective, spare, extreme)
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)
12
unessential(adjective, unwarranted, surplus, unnecessary)
12
gratuitous(adjective, spare, extreme, useless)
10
useless(adjective, waste, spare, extreme)
10
inessential(adjective, extraordinary, new, spare, fresh)
10
unwanted(adjective, waste, spare, extreme, reserve)
9
additional(adjective, extraordinary, new, spare, fresh)
8
overflowing(noun, adjective, spare, luxury, extreme)
7
de trop(expression, adjective, idiom, spare, extreme)
7
expendable(adjective, spare, extreme, useless)
7
extraneous(adjective, extraordinary, new, spare, fresh)
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ChicagoSmart Define. 2016. "superfluous thesaurus" https://smartdefine.org/superfluous/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, superfluous thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/superfluous/thesaurus/synonyms>.
MLASmart Define. "superfluous thesaurus" 9 February 2016. Web. 22 September 2026. <https://smartdefine.org/superfluous/thesaurus/synonyms>