V2 Vocabulary Building Dictionary



Definition: said or done without preparation, on the spot

Synonyms: spontaneous, improvised, ad lib, ad hoc, unrehearsed, extemporaneous

Antonyms: planned, rehearsed

Tips: Impromptu comes from the Latin in promptu, "at hand in readiness." A spontaneous, unprepared speech is an impromptu speech. Impromptu can also be an adverb that refers to delivering a speech without preparation and "off the cuff." Impromptu can also be a noun denoting the actual, unrehearsed speech. Impromptu and extemporaneous are synonymous. Impromptu always refers to a speech or action done or said spontaneously, without planning. Extemporaneous can refer to both an impromptu speech as well as a speech that was practiced beforehand, but delivered without notes.

Usage Examples:

Upon receiving the award, the coach made an impromptu speech to his team. (unplanned, spontaneous, unrehearsed)

Part of the debate is the impromptu question-and-answer session. (spontaneous, extemporaneous)

Could you deliver a short, impromptu toast during the cocktail hour? (unrehearsed, unplanned)

My uncle has an uncanny ability to deliver hilarious, impromptu speeches without any preparation or advanced notice. (spontaneous, unrehearsed, extemporaneous)

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