22
auxiliary(adjective, support, increase, low, extraordinary)
21
additional(adjective, extraordinary, new, spare, fresh)
21
extra(adjective, support, new, spare, excess)
18
supplemental(adjective, increase, extraordinary, new, spare)
16
ancillary(adjective, support, low, extraordinary, new)
15
accessory(adjective, support, low, inferior, subject)
15
added(adjective, extraordinary, new, spare, fresh)
12
fresh(adjective, extraordinary, new, spare, special)
12
secondary(adjective, support, increase, low, inferior)
11
subsidiary(noun, adjective, support, low, inferior)
10
further(adjective, extraordinary, new, spare, fresh)
8
new(adjective, extraordinary, spare, fresh, special)
8
subordinate(adjective, support, useful, minor, helpful)
7
appurtenant(adjective, support, useful, minor, helpful)
6
complementary(adjective, support, extra, additional)
6
more(adjective, adverb, extraordinary, new, spare)
6
plus(adjective, preposition, bar, extraordinary, new)
6
other(adjective, extraordinary, new, spare, fresh)
5
adventitious
5
spare(adjective, support, extraordinary, new, fresh)
<1234510>
10 years ago|6.9k views|share |citing 
APASmart Define. (2016). supplementary thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/supplementary/thesaurus/synonyms
ChicagoSmart Define. 2016. "supplementary thesaurus" https://smartdefine.org/supplementary/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, supplementary thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/supplementary/thesaurus/synonyms>.
MLASmart Define. "supplementary thesaurus" 19 February 2016. Web. 22 September 2026. <https://smartdefine.org/supplementary/thesaurus/synonyms>