Source : Webster's Revised Unabridged Dictionary (1913)

Ireful \Ire"ful\, a.
   Full of ire; angry; wroth. ``The ireful bastard Orleans.''
   --Shak. -- {Ire"ful*ly}, adv.

Source : WordNet®

ireful
     adj : feeling or showing extreme anger; "irate protesters";
           "ireful words" [syn: {irate}]