Teachers of speech will tell you that an extemporaneous speech is one that has been thoroughly prepared and planned but not memorized, whereas an impromptu speech is one for which …

EXTEMPORANEOUS definition: done, spoken, performed, etc., without special advance preparation; impromptu. See examples of extemporaneous used in a sentence.

At top levels, extemporaneous is a smooth, dynamic performance that incorporates research, background knowledge, and opinion.

Definition of 'extemporaneous' extemporaneous in British English (ɪkˌstɛmpəˈreɪnɪəs ) or extemporary (ɪkˈstɛmpərərɪ , -prərɪ ) adjective

Jan 7, 2026 · Adjective extemporaneous (comparative more extemporaneous, superlative most extemporaneous) With inadequate preparation or without advance thought; offhand. …

Definition of extemporaneous adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

extemporaneous , impromptu - Extemporaneous means "prepared in advance and carried out with few or no notes," while impromptu means "totally unprepared, performed on the spur of …