Adjective: extemporaneous ik,stem-pu'rey-nee-us
- With little or no preparation or forethought
"an extemporaneous piano recital";
- ad-lib, extemporary, extempore, impromptu, offhand, offhanded, off-the-cuff, unrehearsed
See also: ill-prepared, unprepared
Encyclopedia: Extemporaneous