[ im-prov-uh-zey-shuh n, im-pruh-vuh- ]
/ ɪmˌprɒv əˈzeɪ ʃən, ˌɪm prə və- /


the art or act of improvising, or of composing, uttering, executing, or arranging anything without previous preparation: Musical improvisation involves imagination and creativity.
something improvised: The actor's improvisation in Act II was both unexpected and amazing.

Origin of improvisation

First recorded in 1780–90; improvise + -ation

OTHER WORDS FROM improvisation

im·prov·i·sa·tion·al, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for improvisation

British Dictionary definitions for improvisation

/ (ˌɪmprəvaɪˈzeɪʃən) /


the act or an instance of improvising
a product of improvising; something improvised

Derived forms of improvisation

improvisational or improvisatory (ˌɪmprəˈvaɪzətərɪ, -ˈvɪz-, ˌɪmprəvaɪˈzeɪtərɪ, -trɪ), adjective
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