extemporary

from WordNet (r) 3.0 (2006)

extemporary
    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}]

from The Collaborative International Dictionary of English v.0.48

Extemporary \Ex*tem"po*ra*ry\, a.
   1. Extemporaneous. "In extemporary prayer." --Fuller.
      [1913 Webster]

   2. Made for the occasion; for the time being. [Obs.]
      "Extemporary habitations." --Maundrell.
      [1913 Webster]