Definition of 'ad-lib'

Noun

1. remark made spontaneously without prior preparation; "his ad-libs got him in trouble with the politicians"

Verb

1. perform without preparation; "he extemporized a speech at the wedding"
      Synonyms: improvise improvize extemporize extemporise

Adjective

1. said or done without having been planned or written in advance; "he made a few ad-lib remarks"
      Synonyms: spontaneous unwritten
2. with little or no preparation or forethought; "his ad-lib comments showed poor judgment"; "an extemporaneous piano recital"; "an extemporary lecture"; "an extempore skit"; "an impromptu speech"; "offhand excuses"; "trying to sound offhanded and reassuring"; "an off-the-cuff toast"; "a few unrehearsed comments"
      Synonyms: extemporaneous extemporary extempore impromptu offhand offhanded off-the-cuff unrehearsed

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