Definition of "extemporary" [ex•tem•po•ra•ry]

• Spoken, done, or composed with little or no preparation or forethought. See Synonyms at extemporaneous. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Not always, not by every one, come these inspirations; too often what is called extemporary prayer is but a form, differing from the liturgy of the church only in being poorer and colder."
• "Exercise I have of late withdrawn my self: three Hours by the Clock he prays extemporary, which is, for National and Household Blessings: For the first -- 'tis to confound the Interest of the King, that the Lard wou'd deliver him, his Friends, Adherers and Allies, wheresoever scatter'd about the Face of the whole Earth, into the Clutches of the"
• "Tom o 'the Gleam standing up and delivering a kind of extemporary oration, while his rough cap, under the pilotage of Bill Bush, was being passed round the table in the fashion of a collecting plate."