129 entries under spare topic. ×

30
additional(adjective, place, increase, lower, new)
22
superfluous(noun, adjective, unreasonable, luxury)
21
surplus(noun, adjective, gain, waste, rest)
20
supplementary(adjective, support, new, excess)
20
further(adjective, adverb, increase, new)
19
accessory(noun, adjective, support, part, lower)
19
auxiliary(noun, adjective, support, part, lower)
18
supernumerary(noun, adjective, extreme, reserve)
18
excess(noun, adjective, waste, rest)
17
more(adjective, adverb, increase, new)
16
supplemental(adjective, excess, addition, further)
16
unused(adjective, clear, waste, reserve)
15
fresh(adjective, increase, new, excess)
15
plus(noun, adjective, adverb, advantage)
15
secondary(noun, adjective, support, place, lower)
14
added(noun, adjective, increase, new)
13
leftover(adjective, waste, split, extreme)
13
redundant(adjective, unreasonable, extreme, useless)
11
ancillary(noun, adjective, support, inferior)
11
special(adjective, excess, further, alternative)
<123457>
10 years ago|25k views|share |citing 
APASmart Define. (2016). extra thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/extra/thesaurus/synonyms
ChicagoSmart Define. 2016. "extra thesaurus" https://smartdefine.org/extra/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, extra thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/extra/thesaurus/synonyms>.
MLASmart Define. "extra thesaurus" 30 March 2016. Web. 22 September 2026. <https://smartdefine.org/extra/thesaurus/synonyms>