76 entries under expression topic. ×

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off one's guard(idiom, danger)
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off the hip(idiom, impromptu, extemporaneous)
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off top of head(idiom, informal, snap, unrehearsed)
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out of order(idiom, imperfection)
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out of the blue(idiom, unexpectedly, astonishingly, astoundingly)
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out of tune(idiom, imperfection)
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rough cast(idiom, nonpreparation)
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rough hewn(idiom, nonpreparation)
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s'embarquer sans biscuits(idiom, nonpreparation)
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see complete(idiom, incompleteness)
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shooting blanks(incompetent, wasteful, unproductive)
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spur of the moment(idiom, free, casual, spontaneous)
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want preparation(idiom, nonpreparation)
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without delay(suddenly, unexpectedly, unawares)
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without hesitation(suddenly, unexpectedly, unawares)
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without warning(suddenly, unexpectedly, unawares, astonishingly)
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APASmart Define. (2015). unprepared thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/unprepared/thesaurus/synonyms
ChicagoSmart Define. 2015. "unprepared thesaurus" https://smartdefine.org/unprepared/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, unprepared thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/unprepared/thesaurus/synonyms>.
MLASmart Define. "unprepared thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/unprepared/thesaurus/synonyms>