Improvised; without prior preparation, planning or rehearsal.
‘The party began with an impromptu rendition of 'Happy Birthday'.’; ‘an impromptu speech’;
To make something up or invent it as one goes on; to proceed guided only by imagination, instinct, and guesswork rather than by a careful plan.
‘He had no speech prepared, so he improvised.’; ‘They improvised a simple shelter with branches and the rope they were carrying.’; ‘She improvised a lovely solo.’;
(music) A short musical composition for an informal occasion often with the character of improvisation and usually to be played solo.
To compose, recite, or sing extemporaneously, especially in verse; to extemporize; also, to play upon an instrument, or to act, extemporaneously.
(by extension) Any composition, musical or otherwise, that is created on the spot without preparation.
To bring about, arrange, do, or make, immediately or on short notice, without previous preparation and with no known precedent as a guide.
‘Charles attempted to improvise a peace.’;
Offhand; without previous study; extemporaneous; extempore; as, an impromptu verse.
To invent, or provide, offhand, or on the spur of the moment; as, he improvised a hammer out of a stone.
Something made or done offhand, at the moment, or without previous study; an extemporaneous composition, address, or remark.
To produce or render extemporaneous compositions, especially in verse or in music, without previous preparation; hence, to do anything offhand.
A piece composed or played at first thought; a composition in the style of an extempore piece.
perform without preparation;
‘he extemporized a speech at the wedding’;
an extemporaneous speech or remark;
‘a witty impromptu must not sound premeditated’;
manage in a makeshift way; do with whatever is at hand;
‘after the hurricane destroyed our house, we had to improvise for weeks’;
a short musical passage that seems to have been made spontaneously without advance preparation
with little or no preparation or forethought;
‘his ad-lib comments showed poor judgment’; ‘an extemporaneous piano recital’; ‘an extemporary lecture’; ‘an extempore skit’; ‘an impromptu speech’; ‘offhand excuses’; ‘trying to sound offhanded and reassuring’; ‘an off-the-cuff toast’; ‘a few unrehearsed comments’;
without advance preparation;
‘he spoke ad lib’;
An impromptu (, French: [ɛ̃pʁɔ̃pty], loosely meaning ) is a free-form musical composition with the character of an ex tempore improvisation as if prompted by the spirit of the moment, usually for a solo instrument, such as piano. According to Allgemeine musikalische Zeitung, Johann Baptist Cramer began publishing piano pieces under the (sub-)title of (AMZ, Mar.