ˈimprəˌvīz also ˌ ̷ ̷ ̷ ̷ˈ ̷ ̷ verb
( -ed/-ing/-s )
Etymology: French improviser, from Italian improvvisare, from improvviso unprovided, sudden, extempore, from Latin improvisus unforeseen, unexpected, from in- in- (I) + provisus foreseen — more at proviso
transitive verb
1. : to compose, recite, or sing especially in verse or to play on an instrument or act extemporaneously
his cast, who improvise dialogue, gags, and situations as they go along — Current Biography
2.
a. : to bring about, arrange, or make on the spur of the moment or without preparation
the cook … hastily improvised a supper — Willa Cather
housed in improvised temporary quarters — Report: (Canadian) Royal Commission on National Development
had to improvise policy always — James Cameron
b. : to construct or fabricate out of what is conveniently at hand
an improvised laboratory — Current Biography
fish … with improvised hooks and lines — American Guide Series: New York City
intransitive verb
: to improvise something especially in verse or music : extemporize