[ 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.


Discover The Influence Of Portuguese On English Via This Quiz!
We’ve gathered some interesting words donated to English from Portuguese … as well as some that just don’t translate at all. Do you know what they mean?
Question 1 of 11
Which of the following bird names traces its immediate origin to Portuguese?

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

Example sentences 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