43
perks
30
additional(adjective, place, increase, lower, new)
23
spare(noun, verb, adjective, adverb, support)
22
superfluous(noun, adjective, spare, unreasonable, luxury)
21
surplus(noun, adjective, gain, waste, rest)
20
supplementary(adjective, support, new, spare, excess)
20
further(adjective, adverb, increase, new, spare)
19
accessory(noun, adjective, support, part, lower)
19
auxiliary(noun, adjective, support, part, lower)
18
supernumerary(noun, adjective, spare, extreme, reserve)
18
excess(noun, adjective, waste, rest, spare)
17
more(adjective, adverb, increase, new, spare)
16
supplemental(adjective, spare, excess, addition, further)
16
unused(adjective, clear, waste, spare, reserve)
15
fresh(adjective, increase, new, spare, excess)
15
plus(noun, adjective, adverb, spare, advantage)
15
secondary(noun, adjective, support, place, lower)
14
added(noun, adjective, increase, new, spare)
14
addition(noun, part, increase, advantage, extension)
13
bonus(noun, adjective, gain, benefit, advantage)
<1234510>
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>