Synonyms|77Antonyms|1|Broader|0Narrower|0Related|27

42 entries under extra topic. ×

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dummy(auxiliary, supernumerary)
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experimental(auxiliary, supernumerary)
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imitation(auxiliary, supernumerary)
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near(auxiliary, supernumerary)
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other(auxiliary, supernumerary)
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provisional(auxiliary, supernumerary)
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proxy(substitute, auxiliary, supernumerary)
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pseudo(auxiliary, supernumerary)
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replacement(auxiliary, supernumerary)
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reserve(subsidiary, auxiliary, supernumerary, supportive)
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second(auxiliary, supernumerary)
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sham(auxiliary, supernumerary)
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standby(reserve, subsidiary, auxiliary, supernumerary)
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stopgap(auxiliary, supernumerary)
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supernumerary
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supplemental(auxiliary, supernumerary)
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supplementary(auxiliary, supernumerary)
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supposititious(auxiliary, supernumerary)
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surrogate(auxiliary, supernumerary, back-up, flipside)
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symbolic(auxiliary, supernumerary)
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APASmart Define. (2013). substitutive thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/substitutive/thesaurus/synonyms
ChicagoSmart Define. 2013. "substitutive thesaurus" https://smartdefine.org/substitutive/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2013, substitutive thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/substitutive/thesaurus/synonyms>.
MLASmart Define. "substitutive thesaurus" 17 June 2013. Web. 28 September 2026. <https://smartdefine.org/substitutive/thesaurus/synonyms>