12
remaining(adjective, waste, unusual, strange, spare)
10
nimiety(noun, waste, rest, spare, luxury)
10
overage(noun, gain, material, spare, advantage)
10
profusion(noun, waste, quantity, excess, abundance)
9
supererogatory(adjective, spare, extreme, reserve, casual)
9
abundance(noun, quantity, luxury, extra, flow)
9
overkill(noun, adjective, waste, rest, material)
9
redundancy(noun, waste, spare, flood, superiority)
9
unnecessary(adjective, extraordinary, new, spare, fresh)
8
flood(noun, quantity, flow, excess, abundance)
8
odd(adjective, informal, unusual, strange, spare)
8
overabundance(noun, waste, rest, spare, luxury)
8
overmuch(noun, adjective, waste, rest, material)
8
overplus(noun, waste, rest, balance, excess)
8
unneeded(adjective, extraordinary, new, spare, fresh)
8
unused(adjective, waste, extraordinary, new, spare)
7
leftovers(noun, waste, piece, rest, spare)
7
over(adjective, unusual, strange, spare, reserve)
7
over-abundance
7
plus(noun, adjective, extraordinary, material, new)
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APASmart Define. (2015). surplus thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/surplus/thesaurus/synonyms
ChicagoSmart Define. 2015. "surplus thesaurus" https://smartdefine.org/surplus/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, surplus thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/surplus/thesaurus/synonyms>.
MLASmart Define. "surplus thesaurus" 23 December 2015. Web. 22 September 2026. <https://smartdefine.org/surplus/thesaurus/synonyms>