The correct spelling for the word "imprompt" is actually "impromptu". It is a French word that means "unplanned" or "unrehearsed". The word is pronounced "im-pruhm-too" with the stress on the second syllable. The IPA phonetic transcription for the word would be /ɪmˈprɒm.tuː/. This spelling mistake may occur due to the similarity in the pronunciation of the two words, but it is important to use the correct spelling in order to convey the intended meaning.
Imprompt is not a recognized word, and therefore, does not have an official dictionary definition. However, it is possible that the term you are referring to is "impromptu." If so, the dictionary definition of impromptu is as follows:
Impromptu (noun): Something that is done, spoken, or performed without preparation or planning; something that is improvised or spontaneous.
Impromptu (adjective): Referring to something that is done, spoken, or performed on the spot or without rehearsal; impulsive or unplanned.
An impromptu action or event usually occurs on the spur of the moment, without any prior thought or preparation. It is often associated with improvisation, where individuals use their creativity or quick thinking to respond or adapt to a situation. Impromptu activities can be found in various fields, such as music, drama, public speaking, or social gatherings. For example, an impromptu speech may require someone to deliver a speech without any prior notice or preparation. Similarly, an impromptu party could be organized on short notice or as a spontaneous decision. The word impromptu is derived from the French word "improviser," meaning to improvise, and it emphasizes the idea of responding in the moment or making something up as one goes along.