not scripted; lacking a script: an unscripted idea for a movie. Informal. that has not been planned for or anticipated: an unscripted interruption of the speech.

What is a synonym for scripted?

written. Antonyms: unscripted, ad-lib, spontaneous, unwritten.

What is the synonym of impromptu?

impromptu. improvised. impulsive. made-up. off-the-cuff.