7
extraneous(adjective, extraordinary, new, spare, fresh)
7
increased(adjective, increase, new, extra, positive)
7
subordinate(adjective, subsidiary, auxiliary, supplementary)
7
supernumerary(adjective, extraordinary, new, spare, fresh)
6
else(adjective, adverb, preposition, new, extra)
6
plus(adjective, extraordinary, new, spare, fresh)
6
surplus(adjective, extraordinary, unusual, strange, new)
5
incidental(adjective, irrelevant, unconnected, unrelated, supplemental)
5
enlarged(adjective, positive, desirable, increased)
5
expanded(adjective, new, extra, positive, desirable)
5
unnecessary(adjective, extraordinary, new, spare, fresh)
4
accidental
4
affixed(adjective, extra, supplementary, added, accompanying)
4
annexed(adjective, attached)
4
augmented(adjective, new, extra, positive, desirable)
4
collateral
4
cumulative
4
extended(adjective, new, extra, greater, supplementary)
4
inessential(adjective, extraordinary, new, spare, fresh)
4
substitute(adjective, extra, alternative, auxiliary, supernumerary)
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APASmart Define. (2015). additional thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/additional/thesaurus/synonyms
ChicagoSmart Define. 2015. "additional thesaurus" https://smartdefine.org/additional/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, additional thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/additional/thesaurus/synonyms>.
MLASmart Define. "additional thesaurus" 30 July 2015. Web. 22 September 2026. <https://smartdefine.org/additional/thesaurus/synonyms>