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 …

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 …

Add to word list done or said without earlier planning or preparation: an impromptu speech (Definition of impromptu from the Cambridge Academic Content Dictionary © Cambridge University Press)

Define impromptu. impromptu synonyms, impromptu pronunciation, impromptu translation, English dictionary definition of impromptu. adj. 1. Prompted by the occasion rather than being planned in …

May 9, 2026 · Adjective impromptu (comparative lebih impromptu, superlative paling impromptu) improvised, extemporaneous, unplanned: without prior preparation, planning, or rehearsal

made or done without previous preparation: an impromptu address to the unexpected crowds. suddenly or hastily prepared, made, etc.: an impromptu dinner. having the character of an improvisation. …

Spoken, performed, done, or composed with little or no preparation; extemporaneous. A few impromptu remarks.

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 …

Prompt; offhand; extempore; extemporized for the occasion: as, an impromptu epigram. noun Something said or written, played, etc., at the moment, or without previous study or preparation; an …

1. Prompted by the occasion rather than being planned in advance: an impromptu party. 2. Spoken, performed, done, or composed with little or no preparation; extemporaneous: a few impromptu remarks.