extemporization

noun

ex·​tem·​po·​ri·​za·​tion ik-ˌstem-pə-rə-ˈzā-shən 

1

: the act of extemporizing : improvisation

2

: something extemporized

Synonyms

• ad-lib
• impromptu
• improv
• improvisation

Examples of extemporization in a Sentence

a guitar extemporization

Word History

Etymology

extemporize + -ation

First Known Use

circa 1860, in the meaning defined at sense 1