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extemporaneous

[ik-stem-puh-rey-nee-uh s] /ɪkˌstɛm pəˈreɪ ni əs/
adjective
1.
done, spoken, performed, etc., without special advance preparation; impromptu:
an extemporaneous speech.
2.
previously planned but delivered with the help of few or no notes:
extemporaneous lectures.
3.
speaking or performing with little or no advance preparation:
extemporaneous actors.
4.
made for the occasion, as a shelter.
Origin
1650-1660
1650-60; < Late Latin extemporāneus on the spur of the moment. See extempore, -an, -eous
Related forms
extemporaneously, adverb
extemporaneousness, extemporaneity
[ik-stem-puh-ruh-nee-i-tee] /ɪkˌstɛm pə rəˈni ɪ ti/ (Show IPA),
noun
Synonyms
1, 2. Extemporaneous (extempore ), impromptu, improvised are used of expression given without preparation or only partial preparation. Extemporaneous and impromptu may both refer to speeches given without any preparation: an extemporaneous (impromptu ) speech. Extemporaneous may also refer to a speech given from notes or an outline: extemporaneous lectures. Impromptu also refers to poems, songs, etc., delivered without preparation and at a moment's notice. Improvised is applied to something composed (recited, sung, acted), at least in part, as one goes along: an improvised piano accompaniment.
Antonyms
1. memorized.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for extemporaneity

extemporaneous

/ɪkˌstɛmpəˈreɪnɪəs/
adjective
1.
spoken, performed, etc, without planning or preparation; impromptu; extempore
2.
done in a temporary manner; improvised
Derived Forms
extemporaneously, extemporarily, adverb
extemporaneousness, extemporariness, noun
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
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Word Origin and History for extemporaneity

extemporaneous

adj.

1650s (earlier extemporal, 1560s), from Medieval Latin extemporaneus, from Latin ex tempore (see extempore). Related: Extemporaneously.

Online Etymology Dictionary, © 2010 Douglas Harper
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Difficulty index for extemporaneous

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Word Value for extemporaneity

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