Sarcastic

sarcastic
    adj 1: expressing or expressive of ridicule that wounds [ant:
           {unsarcastic}]
    

Sarcastic \Sar*cas"tic\, Sarcastical \Sar*cas"tic*al\, a.
   Expressing, or expressed by, sarcasm; characterized by, or of
   the nature of, sarcasm; given to the use of sarcasm; bitterly
   satirical; scornfully severe; taunting.
   [1913 Webster]

         What a fierce and sarcastic reprehension would this
         have drawn from the friendship of the world! --South.
   [1913 Webster]
    

51 Moby Thesaurus words for "sarcastic":
      Rabelaisian, acerb, acerbic, acid, acidic, acidulous, acrid,
      acrimonious, biting, bitter, captious, carping, caustic, cavilling,
      censorious, contemptuous, contumelious, corrosive, critical,
      cutting, cynical, derisive, derisory, disdainful, dry, harsh,
      incisive, ironic, ironical, jeering, malefic, malevolent,
      malicious, mocking, mordant, nasty, poisonous, pungent, ridiculing,
      sardonic, satiric, satirical, scathing, scornful, sharp, spiteful,
      stinging, tart, trenchant, venomous, virulent