300 entries under noun topic. ×

58
excess(adjective, waste, rest, material)
37
plethora(waste, rest, material, spare)
35
extra(adjective, gain, waste, rest)
30
spare(verb, adjective, waste, extraordinary)
26
superfluous(adjective, extraordinary, new, spare)
26
leftover(adjective, waste, extraordinary, rest)
22
surfeit(waste, rest, material, spare)
22
superfluity(waste, rest, material, spare)
19
superabundance(waste, material, quantity, excess)
18
remainder(waste, rest, material, spare)
17
glut(waste, quantity, excess, fat)
16
oversupply(gain, waste, material, spare)
16
residue(part, waste, rest, material)
14
overflow(waste, rest, material, spare)
13
surplusage(material, spare, extra, excess)
13
balance(waste, money, rest, material)
13
rest(waste, spare, balance, trace)
10
nimiety(waste, rest, spare, luxury)
10
overage(gain, material, spare, advantage)
10
profusion(waste, quantity, excess, abundance)
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APASmart Define. (2015). surplus thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/surplus/thesaurus/synonyms
ChicagoSmart Define. 2015. "surplus thesaurus" https://smartdefine.org/surplus/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, surplus thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/surplus/thesaurus/synonyms>.
MLASmart Define. "surplus thesaurus" 23 December 2015. Web. 25 September 2026. <https://smartdefine.org/surplus/thesaurus/synonyms>