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
See all Synonyms & Antonyms 
Word History
First Known Use
circa 1860, in the meaning defined at sense 1
extemporization
noun
as in improvisation
something that is performed, made, or done without preparation a guitar extemporization Synonyms & Similar Words
Relevance
- improvisation
- impromptu
- improv
- innovation
- ad-lib
- creation
- concoction
- invention
- wrinkle
- contrivance
Antonyms & Near Antonyms
- drill
- bit
- routine
- rabbit hole
- rabbit holes
- rabbit louse
- rabbit moth
- rabbit on
- rabbit pea
- rabbit punch
- rabbit punches
- rabbit rat
- rabbit squirrel
- rabbit stick
- rabbit syphilis
- rabbit thorn
- rabbit tick
- rabbit tobacco
- rabbit vine
- rabbit warren
- rabbit warrens
- rabbit's foot
- rabbit's pea
- rabbit's-ear
- rabbit's-ears
- rabbit's-foot fern
- rabbit's-mouth
- rabbit's-mouths