51 entries under auxiliary topic. ×
| additional(adjective, extraordinary, new, spare, fresh) | |
| extra(adjective, support, new, spare, excess) | |
| supplemental(adjective, increase, extraordinary, new, spare) | |
| ancillary(adjective, support, low, extraordinary, new) | |
| accessory(adjective, support, low, inferior, subject) | |
| secondary(adjective, support, increase, low, inferior) | |
| subsidiary(noun, adjective, support, low, inferior) | |
| subordinate(adjective, support, useful, minor, helpful) | |
| appurtenant(adjective, support, useful, minor, helpful) | |
| other(adjective, extraordinary, new, spare, fresh) | |
| another(adjective, extraordinary, new, spare, fresh) | |
| substitute(adjective, extra, alternative, supernumerary) | |
| supernumerary(adjective, extraordinary, new, spare, fresh) | |
| contributory(adjective, support, low, inferior, subject) | |
| second(adjective, counterfeit, spare, near, reserve) | |
| standby(adjective, increase, extra, supernumerary) | |
| adjuvant(adjective, support, low, inferior, subject) | |
| backup(noun, adjective, support, increase, counterfeit) | |
| reserve(adjective, support, increase, extraordinary, new) | |
| accompanying(adjective, extra, additional, secondary, subsidiary) |
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| APA | Smart Define. (2016). supplementary thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/supplementary/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "supplementary thesaurus" https://smartdefine.org/supplementary/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, supplementary thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/supplementary/thesaurus/synonyms>. |
| MLA | Smart Define. "supplementary thesaurus" 19 February 2016. Web. 28 September 2026. <https://smartdefine.org/supplementary/thesaurus/synonyms> |