impromptu
adjective
1. with little or no preparation or forethought
- an impromptu speech
Similar word(s): unprepared, extemporaneous, extemporary, extempore, offhand, offhanded, unrehearsed
Sentences with impromptu as an adjective:
- The party began with an impromptu rendition of 'Happy Birthday'.
noun
1. an extemporaneous speech or remark
- a witty impromptu must not sound premeditated
Definition categories: communication, address, speech
2. a short musical passage that seems to have been made spontaneously without advance preparation
Definition categories: communication, passage