Improvisate \Im*prov"i*sate\, a. [See {Improvise}.] Unpremeditated; impromptu; extempore. [R.] [1913 Webster]
Improvisate \Im*prov"i*sate\, v. t. & i. [imp. & p. p. {Improvisated}; p. pr. & vb. n. {Improvisating}.] To improvise; to extemporize. [1913 Webster]