present participle of require improvement

The act or art of composing and making music, poetry, and the like, extemporaneously / That which is improvised; an impromptu. / Musical technique, characteristic of blues music.

failing to provide for the future; reckless / incautious; prone to rashness

To make something up or invent it as one goes on; to proceed guided only by imagination, intuition, and guesswork rather than by a careful plan.

A form of improvisational theatre performed with little predetermination of subject matter and structure, but with interaction with the audience. / An instance of such theatre.

a form of theatre in which the actors perform spontaneously, without a script

In an improvident manner.

The quality of being improvident; want of foresight or thrift.

plural of improvisatore

(poetry) An individual who recites impromptu verse, as from a song or poem.