54 entries under impromptu topic. ×

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manmade(mock, affected)
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mimetic(mock, affected)
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mock
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not genuine(expression, mock, affected)
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not kosher(expression, mock, affected)
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planter(mock, affected)
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soft shell(expression, mock, affected)
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spurious(mock, affected)
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suppositious(mock, affected)
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supposititious(mock, affected)
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trumped-up(mock, affected)
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unauthentic(mock, affected)
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ungenuine(mock, affected)
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without preparation(expression, adverb, offhand, spontaneously)
<123>
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APASmart Define. (2013). improv thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/improv/thesaurus/synonyms
ChicagoSmart Define. 2013. "improv thesaurus" https://smartdefine.org/improv/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2013, improv thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/improv/thesaurus/synonyms>.
MLASmart Define. "improv thesaurus" 17 June 2013. Web. 24 September 2026. <https://smartdefine.org/improv/thesaurus/synonyms>