Source : Webster's Revised Unabridged Dictionary (1913)

Infuriate \In*fu"ri*ate\, v. t. [imp. & p. p. {Infuriated}; p.
   pr. & vb. n. {Infuriating}] [It. infuriato, p. p. of
   infuriare; pref. in- (L. in) + furia fury, L. furia. See
   {Fury}.]
   To render furious; to enrage; to exasperate.

         Those curls of entangled snakes with which Erinys is
         said to have infuriated Athemas and Ino. --Dr. H. More.

Source : WordNet®

infuriating
     adj : extremely annoying or displeasing; "his cavelier curtness of
           manner was exasperating"; "I've had an exasperating
           day"; "her infuriating indifference"; "the ceaseless
           tumult of the jukebox was maddening" [syn: {exasperating},
            {maddening}, {vexing}]