Defn: An improviser, or improvvisatore.

IMPROVISATORE
Im`pro*vi`sa*to"re, n.

Defn: See Improvvisatore.

IMPROVISATORIAL; IMPROVISATORY
Im*prov`i*sa*to"ri*al, Im*prov"i*sa*to*ry, a.

Defn: Of or pertaining to improvisation or extemporaneous composition.

IMPROVISATRICE
Im`pro*vi`sa*tri"ce, n.

Defn: See Improvvisatrice.

IMPROVISE Im`pro*vise", v. t. [imp. & p. p. Improvised; p. pr. & vb. n. Improvising.] Etym: [F. improviser, it. improvvisare, fr. improvviso unprovided, sudden, extempore, L. improvisus; pref. im- not + provisus foreseen, provided. See Proviso.]

1. To compose, recite, or sing extemporaneously, especially in verse; to extemporize; also, to play upon an instrument, or to act, extemporaneously.

2. To bring about, arrange, or make, on a sudden, or without previous preparation. Charles attempted to improvise a peace. Motley.