ad-lib
    adj 1: 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" [syn: ad-lib,
           extemporaneous, extemporary, extempore,
           impromptu, offhand, offhanded, off-the-cuff,
           unrehearsed]
    2: said or done without having been planned or written in
       advance; "he made a few ad-lib remarks" [syn: ad-lib,
       spontaneous, unwritten]
    n 1: remark made spontaneously without prior preparation; "his
         ad-libs got him in trouble with the politicians"
    v 1: perform without preparation; "he extemporized a speech at
         the wedding" [syn: improvise, improvize, ad-lib,
         extemporize, extemporise]