Improvisational theatre is a creative art form that involves creating scenes and characters on the spot without a formal script. It is also known as improv theatre, unscripted theatre, or simply improv. The word "improvisational" means spontaneous or unplanned. As a result, there are many synonyms for this term that describe the same art form, such as improvisation, impromptu, extemporaneous theatre, ad-lib, or off-the-cuff theatre. Each of these terms highlights the unique nature of the performances, where actors use their creativity, wit, and spontaneity to create a one-of-a-kind experience for the audience.