The Collaborative International Dictionary
Improviso
Improviso \Im`pro*vi"so\, a. [L. improvisus unforeseen; cf. It.
improvviso.]
Not prepared or mediated beforehand; extemporaneous. [Obs.]
--Jonhson.
Wiktionary
improviso
a. (context obsolete English) Not prepared beforehand; unpremeditated; extemporaneous.
Usage examples of "improviso".
Itaque confestim dimissis nuntiis ad Ceutrones, Grudios, Levacos, Pleumoxios, Geidumnos, qui omnes sub eorum imperio sunt, quam maximas manus possunt cogunt et de improviso ad Ciceronis hiberna advolant nondum ad eum fama de Tituri morte perlata.