110 entries under collateral topic. ×

10
accessory(adjective, support, spare, useful, minor)
10
ancillary(adjective, support, determined, spare, subject)
9
adjuvant(adjective, support, lower, spare, subject)
9
auxiliary(adjective, support, spare, useful, reserve)
7
subsidiary(adjective, support, spare, useful, reserve)
7
supportive(adjective, spare, reserve, subsidiary)
4
subservient(adjective, support, determined, spare, subject)
3
secondary(adjective, support, lower, spare, useful)
2
adjunctive(adjective, lower, subject, side, subordinate)
2
concomitant(adjective, subject, subordinate, additional)
1
attendant(adjective, subordinate, additional, secondary)
1
cognate(adjective, appropriate, important, proper, significant)
1
coincident(adjective, subject, subordinate, additional)
1
concordant(adjective, subject, interchangeable, attendant)
1
confirmatory(adjective, lower, subject, side, subordinate)
1
incident(adjective, subordinate, additional, secondary)
1
not lineal(expression, adjective, lower, subject, side)
1
related(adjective, appropriate, important, proper, determined)
1
satellite(subject, subordinate, secondary, subsidiary)
1
second-fiddle(adjective, lower, subject, subsidiary)
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APASmart Define. (2016). appurtenant thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/appurtenant/thesaurus/synonyms
ChicagoSmart Define. 2016. "appurtenant thesaurus" https://smartdefine.org/appurtenant/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, appurtenant thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/appurtenant/thesaurus/synonyms>.
MLASmart Define. "appurtenant thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/appurtenant/thesaurus/synonyms>