noun
- An extemporaneous speech or remark.
- usage: "a witty impromptu must not sound premeditated"
- A short musical passage that seems to have been made spontaneously without advance preparation.
adjective
- With little or no preparation or forethought.
- usage: "his ad-lib comments showed poor judgment"; "an extemporaneous piano recital"; "an extemporary lecture"; "an extempore skit"; "an impromptu speech"; "offhand excuses"; "trying to sound offhanded and reassuring"; "an off-the-cuff toast"; "a few unrehearsed comments"
- synonyms: ad-lib, extemporaneous, extemporary, extempore, offhand, offhanded, off-the-cuff, unrehearsed
adverb
- Without advance preparation.
- usage: "he spoke ad lib"
- synonyms: ad lib, ad libitum, spontaneously
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). impromptu. Retrieved September 20, 2026, from http://smartdefine.org/impromptu/definitions/1176236 |
| Chicago | WordNet. 2010. "impromptu" http://smartdefine.org/impromptu/definitions/1176236 (accessed September 20, 2026). |
| Harvard | WordNet 2010, impromptu, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/impromptu/definitions/1176236>. |
| MLA | WordNet. "impromptu" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/impromptu/definitions/1176236> |