Ad Lib Comedy is a form of comedy where the performer improvises their lines and jokes, rather than relying on a script. It is also known as Improv Comedy, which is the 6 letter answer to the crossword puzzle. Ad Lib Comedy is often used in stand-up comedy, sketch comedy, and other forms of comedic performance. It requires the performer to be quick-witted and creative in order to come up with funny lines on the spot.