IMPROVISATE
Im*prov"i*sate, a. Etym: [See Improvise.]

Defn: Unpremeditated; impromptu; extempore. [R.]

IMPROVISATE Im*prov"i*sate, v. t. & i. [imp. & p. p. Improvisated; p. pr. & vb. n. Improvisating.]

Defn: To improvise; to extemporize.

IMPROVISATION
Im*prov`i*sa"tion, n. Etym: [Cf. F. improvisation.]

1. The act or art of composing and rendering music, poetry, and the like, extemporaneously; as, improvisation on the organ.

2. That which is improvised; an impromptu.

IMPROVISATIZE
Im`pro*vis"a*tize, v. t. & i.

Defn: Same as Improvisate.

IMPROVISATOR
Im*prov"i*sa`tor, n.