Skilled at or given to unrehearsed speech or performance:
Without preparation or advance thought; offhand
Having no apparent external cause or influence; occurring or produced by its own energy, force, etc. or through internal causes; self-acting
The definition of unexpected is something that was not planned or anticipated.
To perform an act or utter something in an impromptu manner; improvise:
To make, compose, or perform something extemporaneously.
Performed or expressed without preparation or forethought:
Made or done suddenly, with little or no preparation:
In a ready state; specif., already cooked
Find another word for extemporary. In this page you can discover 21 synonyms, antonyms, idiomatic expressions, and related words for extemporary, like: autoschediastic, extemporaneous, extempore, impromptu, improvised, improviso, spontaneous, unexpected, extemporization, improvisation and spontaneity.