despiteous

from The Collaborative International Dictionary of English v.0.48

Despiteous \Des*pit"e*ous\, a. [OE. despitous, OF. despiteus,
   fr. despit; affected in form by E. piteous. See {Despite}.]
   Feeling or showing despite; malicious; angry to excess;
   cruel; contemptuous. [Obs.] "Despiteous reproaches."
   --Holland.
   [1913 Webster]