Synonyms|872Antonyms|100|Broader|18Narrower|7Related|513

42 entries under extra topic. ×

3
second(noun, substitute, deputy, auxiliary)
3
supposititious(adjective, auxiliary, supernumerary)
2
auxiliary(noun, supply, agent, replacement)
2
provisional(auxiliary, supernumerary)
2
reserve(replacement, alternative, alternate, auxiliary)
2
temporary(replacement, alternative, alternate, auxiliary)
2
tentative(auxiliary, supernumerary)
2
vicarious(auxiliary, supernumerary)
1
standby(supply, agent, replacement, alternate)
0
acting(auxiliary, supernumerary)
0
additional(auxiliary, supernumerary)
0
ancillary(auxiliary, supernumerary)
0
another(auxiliary, supernumerary)
0
experimental(auxiliary, supernumerary)
0
near(auxiliary, supernumerary)
0
other(auxiliary, supernumerary)
0
substitutive(auxiliary, supernumerary)
0
supernumerary
0
supplemental(auxiliary, supernumerary)
0
supplementary(auxiliary, supernumerary)
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ChicagoSmart Define. 2015. "dummy thesaurus" https://smartdefine.org/dummy/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, dummy thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/dummy/thesaurus/synonyms>.
MLASmart Define. "dummy thesaurus" 29 October 2015. Web. 23 September 2026. <https://smartdefine.org/dummy/thesaurus/synonyms>