6
unrequired(adjective, spare, extreme, casual, useless)
5
de trop(expression, adjective, idiom, spare, extreme)
5
excess(adjective, spare, extreme, useless, extra)
4
expletive(noun, adjective, redundancy)
4
groundless(adjective, useless, unwarranted, unnecessary, wanton)
4
in excess(expression, idiom, spare, extreme, extra)
4
nonessential(adjective, spare, extreme, casual, useless)
4
pleonastic(adjective, spare, extreme, useless, extra)
4
surplus(adjective, extraordinary, new, spare, fresh)
4
undue(adjective, unreasonable, extreme, extravagant, excessive)
3
additional(adjective, extraordinary, new, spare, fresh)
3
baseless(unwarranted, unnecessary, wanton, unjustified, unfounded)
3
perk(adjective, extraordinary, new, spare, fresh)
3
supernumerary(adjective, extraordinary, new, spare, fresh)
3
tautological
3
wanton(adjective, cruel, insignificant, casual, irregular)
2
adscititious(adjective, redundancy)
2
adventitious
2
avoidable(adjective, casual, useless, extra, worthless)
2
futile(adjective, casual, useless, extra, senseless)
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APASmart Define. (2015). needless thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/needless/thesaurus/synonyms
ChicagoSmart Define. 2015. "needless thesaurus" https://smartdefine.org/needless/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, needless thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/needless/thesaurus/synonyms>.
MLASmart Define. "needless thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/needless/thesaurus/synonyms>