impromptu

[ im-promp-too, -tyoo ]
/ ɪmˈprɒmp tu, -tyu /
See synonyms for: impromptu / impromptus on Thesaurus.com

adjective

made or done without previous preparation: an impromptu address to the unexpected crowds.
suddenly or hastily prepared, made, etc.: an impromptu dinner.
improvised; having the character of an improvisation.

adverb

without preparation: verses written impromptu.

noun

something impromptu; an impromptu speech, musical composition, performance, etc.
a character piece for piano common in the 19th century and having, despite its title, a clear-cut form.

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Origin of impromptu

First recorded in 1660–70; from French, from Latin in promptū “in readiness”; see in, prompt

synonym study for impromptu

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for impromptu

British Dictionary definitions for impromptu

impromptu
/ (ɪmˈprɒmptjuː) /

adjective

unrehearsed; spontaneous; extempore
produced or done without care or planning; improvised

adverb

in a spontaneous or improvised wayhe spoke impromptu

noun

something that is impromptu
a short piece of instrumental music, sometimes improvisatory in character

Word Origin for impromptu

C17: from French, from Latin in promptū in readiness, from promptus (adj) ready, prompt
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012