1.
[syn: ad-lib, extemporaneous, extemporary, extempore, impromptu, offhand, offhanded, off-the-cuff, unrehearsed]
The Collaborative International Dictionary of English v.0.48:
Extemporaneous \Ex*tem`po*ra"ne*ous\, a. [See Extempore.]
Composed, performed, or uttered on the spur of the moment, or
without previous study; unpremeditated; off-hand; ad-lib;
extempore; extemporary; as, an extemporaneous address or
production. -- Ex*tem`po*ra"ne*ous*ly, adv. --
Ex*tem`po*ra"ne*ous*ness,n.
[1913 Webster]
WordNet (r) 3.0 (2006):
extemporaneous
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]