The Collaborative International Dictionary of English v.0.48:

Madden \Mad"den\, v. t. [imp. & p. p. Maddened; p. pr. & vb.
   n. Maddening.]
   1. To make mad; to drive to madness; to drive to insanity; to
      craze.
      [1913 Webster]

   2. To make very angry; to enrage; to excite violently with
      passion.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Madden \Mad"den\, v. i.
   To become mad; to act as if mad.
   [1913 Webster]

         They rave, recite, and madden round the land. --Pope.
   [1913 Webster]

WordNet (r) 3.0 (2006):

madden
    v 1: cause to go crazy; cause to lose one's mind [syn: madden,
         craze]
    2: drive up the wall; go on someone's nerves
    3: make mad; "His behavior is maddening"

Moby Thesaurus II by Grady Ward, 1.0:

93 Moby Thesaurus words for "madden":
   aggravate, alienate, anger, annoy, antagonize, arouse, awake,
   awaken, badger, bait, bedevil, blow the coals, blow up, bug,
   call forth, call up, craze, dement, derange, distract,
   drive insane, drive mad, embitter, enkindle, enrage, envenom,
   estrange, exacerbate, exasperate, excite, fan, fan the fire,
   fan the flame, feed the fire, fire, flame, foment, frenzy, hassle,
   heat, heat up, impassion, incense, incite, inflame, infuriate, ire,
   irk, irritate, key up, kindle, lash into fury, lather up,
   light the fuse, light up, mad, make mad, move, overexcite, pique,
   plague, possess, provoke, rile, rouse, send mad, set against,
   set astir, set at odds, set fire to, set on fire, shatter,
   steam up, stir, stir the blood, stir the embers, stir the feelings,
   stir up, summon up, torment, turn on, umbrage, unbalance, unhinge,
   vex, wake, wake up, waken, warm, warm the blood, whip up,
   work into, work up