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v. ex·tem·po·rized, ex·tem·po·riz·ing, ex·tem·po·riz·es
To do or perform (something) without prior preparation or practice: extemporized an acceptance speech.
To perform an act or utter something in an impromptu manner; improvise: "[When] the house lights dimmed, she could no longer read what she had written and was forced to extemporize" (Dale Peterson).

[From extempore.]

ex·tem′po·ri·za′tion (-pər-ĭ-zā′shən) n.
ex·tem′po·riz′er n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.extemporization - a performance given extempore without planning or preparation
performance - the act of presenting a play or a piece of music or other entertainment; "we congratulated him on his performance at the rehearsal"; "an inspired performance of Mozart's C minor concerto"


Something improvised:
References in periodicals archive ?
For example, any laughter in response to Bottom's declaration that "I am such a tender ass" (45) is contingent on his unawareness of the double entendre--Bottom's ignorance of his physical condition marks him out as the "straight" man in the play's comedy, rendering such extemporization as lewd gestures to the audience as detrimental to the veracity of the clown's representation.
Exam notes and sample extemporization plans (how to accompany Gregorian chant, how to improvise a fugue) illustrate the text.
He held Extemporization concert in theatre of Paris, concert in historical Palace of Versailles and concert in Music Conservator Rome-Italy.
His installations, created without a blueprint, emerge from a process of tinkering and fiddling as workers add and insert shapes in a theatrical form of extemporization.
These officials were charged with detecting what might be described as the Achilles heel of censorship: extemporization, for however strict the system of stage censorship, is it is virtually impossible for the authorities to ensure that the script that has been approved will be performed unchanged and without subversive nonverbal additions.
Improvisation is a creative process and is also called extemporization, and can lead to the discovery of new ways to act, new patterns of thought and practices, or result in new structures.
Vivaldi is reputed to have been a first rate violinist, his published scores springboards for flights of wild virtuoso extemporization.
Ernie Banks, 18, was a big hit among the two dozen or so people in attendance with his extemporization of a Chipmunklike rap song.
Another key point is the way in which American practice in OVERLORD represented some extemporization from the formal doctrine promulgated in FM 31-35.
Putting a fresh twist on impulsive extemporization, it turns to account the actual conditions of Victorian print culture on which spasmodic writers both depended and turned their backs.