48 entries under supplementary topic. ×

13
accessory(adjective, support, aid, low, spare)
13
ancillary(adjective, support, aid, low, spare)
13
auxiliary(adjective, support, aid, low, spare)
10
subsidiary(adjective, support, aid, low, spare)
9
appurtenant(adjective, support, lower, spare, subject)
6
collateral(adjective, lower, low, spare, inferior)
6
subservient(adjective, support, aid, low, spare)
5
subordinate(adjective, support, lower, spare, subject)
4
concomitant(adjective, subject, subordinate, collateral, additional)
3
contributory(adjective, support, low, spare, inferior)
2
assisting(adjective, support, minor, branch, helpful)
2
attendant(adjective, joint, subordinate, contemporary, collateral)
2
coincident(adjective, joint, subordinate, contemporary, collateral)
2
dependent(adjective, low, minor, secondary, indirect)
2
incident(adjective, joint, subordinate, contemporary, collateral)
2
secondary(adjective, support, lower, low, spare)
2
support
1
below par(expression, adjective, low, subject, lesser)
1
complementary(adjective, support, spare, joint, subordinate)
1
extra(adjective, support, spare, auxiliary)
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APASmart Define. (2015). adjuvant thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/adjuvant/thesaurus/synonyms
ChicagoSmart Define. 2015. "adjuvant thesaurus" https://smartdefine.org/adjuvant/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, adjuvant thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/adjuvant/thesaurus/synonyms>.
MLASmart Define. "adjuvant thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/adjuvant/thesaurus/synonyms>