adlibbed

verb (used with object), ad-libbed, ad-lib·bing.

1. to improvise all or part of (a speech, a piece of music, etc.): to ad-lib one’s lines.

verb (used without object), ad-libbed, ad-lib·bing.

2. to act, speak, etc., without preparation: Throughout the play he had to ad-lib constantly.

adjective

3. impromptu; extemporaneous: ad-lib remarks to hecklers.

verb -libs, -libbing or -libbed

1. to improvise and deliver without preparation (a speech, musical performance, etc)

adjective (ad lib when predicative)

2. improvised; impromptu

adverb ad lib

3. without restraint; freely
4. music short for ad libitum

noun

5. an improvised performance, often humorous