extemporizers

/ɪkˈstɛmpəraɪzərz/
noun
  1. People who speak or perform without preparation or practice.
    • The best extemporizers can give a funny speech without any notes.
    • Jazz musicians are often skilled extemporizers, creating melodies as they play.
    • In the debate club, the extemporizers had to argue their points on the spot.
Synonyms
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