from The American Heritage® Dictionary of the English Language, 5th Edition.

  • intransitive verb To improvise and deliver extemporaneously.
  • intransitive verb To engage in improvisation, as during delivery of a speech.
  • noun Words, music, or actions uttered, performed, or carried out extemporaneously.
  • adjective Uttered, performed, or carried out spontaneously.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • verb To improvise all or part of a speech or other performance, especially in comedy.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective with little or no preparation or forethought
  • adjective said or done without having been planned or written in advance
  • verb perform without preparation
  • noun remark made spontaneously without prior preparation


from Wiktionary, Creative Commons Attribution/Share-Alike License

From ad lib.


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  • That Ed Miliband: if only he didn't look a nerd; if only he learnt to ad-lib better at PMQs, Labour would be in better nick.

    Ed Miliband: Keep calm and carry on? 2012

  • The seer's attention skips here and there and often stumbles into an uncensored ad-lib.

    First Contact Gabriel Orgrease 2012

  • I start each day with an ad-lib full-facial and then I go out nicking cars.

    Oogy Wawa Penny Goring 2011

  • What I'd love is to find out that his line was a complete ad-lib that Robbins didn't know was coming.

    A cynical satirical thriller with a heart 2010

  • "His opening ad-lib quieting thunderous applause - 'It's still just me' - should be an instructional moment in public behavior in our celebrity culture."

    Morning Bits Jennifer Rubin 2011

  • Gary, thinking he was free of the confines of the script, did not really understand what “ad-lib some character lines” meant, and in every take he portrayed a different character altogether, including a six-year-old child.

    Roseanne Archy Roseanne Barr 2011

  • There was always room to ad-lib lines with the court and each other, but we all knew where we were going, and what was supposed to happen on the field.

    Brian Ruckley · Interview with the Knight 2009

  • He tried his trademark joking, sputtering an ad-lib about eating too much barbecue but his head bobbed under the strain, and his thin neck muscles stretched and strained in the light.

    Grand Heads for America: A Fable of Exceptionalism Steve Anderson 2011

  • When Fred refused to change the script to accommodate me, or even to allow me to rewrite it, the director said that I could ad-lib some lines that were not as sexually debasing as what was on the page in a scene with the actor who was portraying my husband, the amazing Mr. Gary Busey.

    Roseanne Archy Roseanne Barr 2011

  • Nick Reid, the Mississippi-delta repo-man hero of Rick Gavin's first book, "Ranchero," would never be mistaken for the archetypal PI, but he fulfills assignments with all the ad-lib panache of Robert Parker's Spenser or Raymond Chandler's Marlowe.

    And Then There Were Ten Tom Nolan 2011


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