What does "improviso" mean?

Not prepared beforehand; unpremeditated; extemporaneous.

What is a synonym for "improviso"?

Common synonyms include: ad lib, extemporaneous, impromptu, improvised, jury rigged, makeshift.

adj

adj ·Rare ·Advanced level

Adjective

1
Not prepared beforehand; unpremeditated; extemporaneous. not-comparable, obsolete
"a. 1784, Samuel Johnson, "Improviso Translation of the following lines of M. Benserade A Son Lit""

"a. 1784, Samuel Johnson, "Improviso Translation of the following lines of M. Benserade A Son Lit""

From Latin improvisus (“unforeseen”); compare Italian improvviso.