Definition of "improviser" [im•pro•vis•er]

• One who improvises. (noun)

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• "To this day he maintains his mild-mannered secret identity as an English major (what could be more worthless modest) between jobs and a part time actor/improviser."
• "Mr. Williams was known as an adept improviser who effortlessly switched between classical, jazz and pop styles."
• "Usually at home I work from recipes, but Bianca's an improviser and after consulting with her I whomped up something I'd call Tofu"