■ verb
1》 create and perform (music, drama, or verse) spontaneously or without preparation.
2》 produce or make (something) from whatever is available.
Derivatives
improvisation noun
improvisational adjective
improvisatorial adjective
improvisatory adjective
~r noun
Origin
C19 (earlier (C18) as improvisation ): from Fr. ~r or Ital. improvvisare , from improvviso 'extempore'.