Impromptu delivery of anything is spontaneous or "off the cuff." Requirements for such a delivery include a relaxed attitude, familiarity with a subject or the people you're "delivering" to, or no brain-to-mouth filter.
An impromptu speech is a speech or presentation that is given without any prior preparation or planning. Speakers must think on their feet and deliver a coherent and effective message on the spot. Impromptu speeches often showcase a speaker's ability to communicate effectively and think quickly under pressure.
Fantaisie Impromptu
Impromptu is an adjective.
Chopin Impromptu #4 (Fantasie Impromptu) is by far the hardest one. That song is related to Beethoven Moonlight Sonata 3rd movement. Other than Fantasie Impromptu, the most difficult is Chopin Impromptu #3. #1 is the easiest. Impromptu #2 is more beautiful than #1/#3. Fantasie Impromptu is also by far the most beautiful one. Impromptu #3 is slightly more beautiful than Impromptu #1. No offense to Impromptu #1.
The antonym for impromptu is planned or rehearsed.
Impromptu acting is acting at the spur of the moment.
An impromptu, in music, is a piece that was unplanned for (usually suddenly inspired by something). Impromptu in general means "unplanned for."
It is something that is made or done without previous preparation. An impromptu dinner is hastily prepared. An impromptu speech that was off the cuff and unprepared. An impromptu address to unexpected crowds
She delivered an impromptu speech at the event, showcasing her ability to think on her feet.
advantages and disadvantages of Impromptu presentation
Your impromptu adlibs are NOT appreciated as you keep STEALING THE SCENE! The impromptu picnic was held sans ants.
The origin of the word impromptu is french. The definition is having no preparation.