extemporaneous
ex·tem·po·raneous
adjective
1.
with little or no preparation or forethought
- “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”
Origin
From Late Latin extemporāneus, from Latin ex tempore (“impromptu”).
Related words
Word family
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.