ex·tem·po·re I. \ikˈstempərē, ek-, -ri, -ˌrē also -ˌrā\adverb Etymology: Latin ex tempore instantaneously, on the spur of the moment, from ex out of + tempore, abl. of tempus time — more at ex-, temporal : in an extempore manner : extemporaneously II. noun (pluralextemporesalsoextempore) archaic: something that is extemporaneous : improvisation III. adjective : extemporaneous < his effusions were genuinely extempore — W.G.Lane >