1. A short musical passage that seems to have been made spontaneously without advance preparation.
2. An extemporaneous speech or remark;
In music, a 19th-century character piece in the style of an improvisation. Composers of piano impromptus include Schubert and Chopin.
ETYM Cf. French improvisation.
Creating a play, a poem, or any other imaginative work, without preparation.
The term is used in gcse English for the unprepared piece of drama most students undertake as part of their assessment in the Speaking and Listening section of their examination.
The word has already been twisted from its original meaning in this context, and the term “prepared improvisation” is being used to show that some preparation time has been allowed.
An unplanned expedient; SYN. temporary expedient.