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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 ?
The structured interludes behind Kew Ross's dance narrative also permitted extemporization, and this blending of communal purpose with individual freedom was highly expressive.
Expanding on this broad claim, Marsalis explains that since group extemporization is the jazz tradition's aesthetic centre, then naturally the music constitutes the most essential embodiment of the American necessity of negotiating diverse agendas.
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.
And I'm not talking about the blues, of course, but rather extemporization --the idea of composition being a living, breathing, dynamic process.
He held Extemporization concert in theatre of Paris, concert in historical Palace of Versailles and concert in Music Conservator Rome-Italy.
Cartagena Calderon argues, increasingly preoccupied with masculinity, Spanish actresses participated in a masculine discourse through the conventions of cross-dressing and the practice of extemporization, introduced by Italian Commedia dell'Arte troupes in the 1570s.
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.
223) O'Neill released a NSC document, dated March 5, 2001, entitled Foreign Suitors for Iraqi Oilfield Contracts, and noted that Defense Secretary Rumsfeld's accompanying extemporization at this meeting addressed "the oil fields, the reconstruction of the country's economy, and the 'freeing of the Iraqi people.
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.
In outmaneuvering Gorbachev he had exhibited adaptability, "feline" intuitiveness, a capacity for extemporization, and other qualities extolled by Colton; now a darker side emerged, that of the unprincipled opportunist regurgitated by an atrophying system he was destined to bury.
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.