Impromptu most often describes things, such as speeches or gatherings, that are not prepared ahead of time but that instead happen spontaneously. An impromptu concert or photoshoot, for example, is conceived and executed in the moment.

IMPROMPTU definition: 1. done or said without earlier planning or preparation: 2. done or said without earlier planning…. Learn more.

Synonyms for IMPROMPTU: improvised, improvisational, spontaneous, spur-of-the-moment, unauthorized, extemporaneous, unprepared, unrehearsed; Antonyms of IMPROMPTU: prepared, planned, rehearsed, premeditated, deliberate, intentional, considered, intended

An impromptu (/ ɪmˈprɒmptjuː /, French: [ɛ̃pʁɔ̃pty] ⓘ, loosely meaning "offhand") 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.

IMPROMPTU meaning: 1. done or said without earlier planning or preparation: 2. done or said without earlier planning…. Learn more.

an impromptu address to the unexpected crowds. an impromptu dinner. improvised; having the character of an improvisation. verses written impromptu. a character piece for piano common …

IMPROMPTU definition: unrehearsed ; spontaneous ; extempore | Meaning, pronunciation, translations and examples

The adjective impromptu describes things done or said without previous thought or preparation. Impromptu is also used as an adverb: Most people are not able to speak impromptu in front of an audience.

1. made or done without previous preparation: an impromptu party. 2. having the character of an improvisation. 3. without preparation: to deliver a speech impromptu. n. 4. something impromptu. 5. a piano work of improvisatory spirit. syn: See extemporaneous.

An impromptu action is one that you do without planning or organizing it in advance. This afternoon the Palestinians held an impromptu press conference. The children put on an impromptu concert for the visitors.