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1. Carried out or performed with little or no preparation; impromptu: an extemporaneous piano recital.
2. Prepared in advance but delivered without notes or text: an extemporaneous speech.
3. Skilled at or given to unrehearsed speech or performance: an accomplished extemporaneous speaker.
4. Provided, made, or adapted as an expedient; makeshift: an extemporaneous policy decision.

[From Late Latin extemporāneus, from Latin ex tempore; see extempore.]

ex·tem′po·ra·ne′i·ty (-pər-ə-nē′ĭ-tē) n.
ex·tem′po·ra′ne·ous·ly adv.
ex·tem′po·ra′ne·ous·ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adv.1.extemporaneously - without prior preparation; "he spoke extemporaneously"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
à la voléeextemporanément
References in classic literature ?
(with the single exception perhaps of the tragic muse, when playing extemporaneously on the barrel organ before the East India Company) can parallel.
Speaking extemporaneously and alternating between Tagalog and English, his short biographical sketch disclosed he came from a truly poor family who rose through great difficulties but who had real breaks, and later took special courses in the universities of Harvard and Oxford.
Speaking extemporaneously, Bersamin recounted having attended another reunion with fellow UP alumni.
'The Tausug kissa, for example was chanted extemporaneously throughout the Bud Dajo Massacre of 1906, the Zamboanga Siege (in 2013) and the Japanese occupation.
There are cases where you will be asked to speak extemporaneously in what is commonly known as the after-dinner speech.
Imran is famous for speaking extemporaneously and saying whatever comes to his mind; facts and reason be damned.
"After learning Turkish my English was affected, and for a while it was very difficult for me to speak in an articulate way extemporaneously. But then it got better.
Kennedy then ditched his prepared remarks on the environment, continuing instead to riff extemporaneously about the test ban treaty.
"What do I say?" Kennedy had asked his press secretary, Frank Mankiewicz, on the flight into Indianapolis that night [of King's murder.] Should he use what his speechwriters had hastily prepared for him, or go with his gut, even though he had never been the gifted orator his brother was, and rarely spoke extemporaneously, and had never talked of King publicly before?
Martinez contends: (1) her attorney was ineffective because he misplaced a written statement Martinez intended to read at the sentencing hearing, thereby requiring her to speak extemporaneously, compromising her right of allocution; and (2) counsel failed to withdraw after Martinez allegedly notified him that she wanted to hire a different attorney for the sentencing hearing, violating her right to an attorney of her choosing.
The drugs: sertraline and venlafaxine (purchased from Sigma-Aldrich Chemical Company)--were extemporaneously dissolved in 0.9% saline solution.