33 entries under supernumerary topic. ×
| backup(noun, adjective, increase, reserve, extra) | |
| replacement(noun, adjective, spare, reserve, extra) | |
| reserve(noun, adjective, increase, extra, substitute) | |
| auxiliary(noun, adjective, increase, spare, supply) | |
| extra(noun, adjective, spare, reserve, replacement) | |
| second(extra, substitute, replacement, auxiliary) | |
| supplemental(adjective, increase, extra, auxiliary) | |
| supplementary(adjective, increase, extra, auxiliary) | |
| ancillary(adjective, extra, substitute, auxiliary) | |
| additional(adjective, spare, extra, replacement, temporary) | |
| artificial(adjective, extra, auxiliary) | |
| acting(extra, auxiliary) | |
| alternative(extra, replacement, alternate, auxiliary) | |
| another(extra, auxiliary) | |
| counterfeit(extra, auxiliary) | |
| ersatz(extra, auxiliary) | |
| experimental(extra, auxiliary) | |
| false(extra, auxiliary) | |
| imitation(extra, auxiliary) | |
| mock(extra, auxiliary) |
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| APA | Smart Define. (2015). standby thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/standby/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "standby thesaurus" https://smartdefine.org/standby/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, standby thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/standby/thesaurus/synonyms>. |
| MLA | Smart Define. "standby thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/standby/thesaurus/synonyms> |