Im`pro*vise" (?), v. t. [imp. & p. p. Improvised (?); p. pr. & vb. n. Improvising.] [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.
3.
To invent, or provide, offhand, or on the spur of the moment; as, he improvised a hammer out of a stone.
© Webster 1913.
Im`pro*vise", v. i.
To produce or render extemporaneous compositions, especially in verse or in music, without previous preparation; hence, to do anything offhand.
© Webster 1913.