3
appendage
3
attachment
3
extra(adjective, support, spare, auxiliary, supplementary)
3
pertinent(adjective, good, appropriate, true, suitable)
3
relatable(adjective, appropriate)
3
relative(adjective, important, relation, susceptible, applicable)
3
secondary(adjective, support, lower, spare, useful)
2
accessary
2
accessorial
2
additional
2
adjunctive(adjective, lower, subject, side, subordinate)
2
annexe
2
appendix
2
applicable(adjective, good, appropriate, true, suitable)
2
apposite(adjective, appropriate, applicable, germane, pertinent)
2
appropriate(adjective, suitable, applicable, germane, pertinent)
2
apropos(adjective, appropriate)
2
apt(adjective, good, appropriate, true, suitable)
2
attached
2
complement
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APASmart Define. (2016). appurtenant thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/appurtenant/thesaurus/synonyms
ChicagoSmart Define. 2016. "appurtenant thesaurus" https://smartdefine.org/appurtenant/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, appurtenant thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/appurtenant/thesaurus/synonyms>.
MLASmart Define. "appurtenant thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/appurtenant/thesaurus/synonyms>