Source : Webster's Revised Unabridged Dictionary (1913)

Derisive \De*ri"sive\, a.
   Expressing, serving for, or characterized by, derision.
   ``Derisive taunts.'' --Pope. -- {De*ri"sive*ly}, adv. --
   {De*ri"sive*ness}, n.

Source : WordNet®

derisive
     adj : abusing vocally; expressing contempt or ridicule; "derisive
           laughter"; "a jeering crowd"; "her mocking smile";
           "taunting shouts of `coward' and `sissy'" [syn: {gibelike},
            {jeering}, {mocking}, {taunting}]