Extemporary Synonyms

ĭk-stĕmpə-rĕrē
Spoken, performed, or composed with little or no preparation or forethought
(Adjective)
Synonyms:
(Noun)
  1. extemporization
  2. improvisation
  3. improviso
  4. spontaneity
Synonyms:
(Verb)
  1. extemporize
  2. improvise