Open English Wordnet
Adjectives
(s)bloody-minded, cantankerousstubbornly obstructive and unwilling to cooperate“unions … have never been as bloody-minded about demarcation as the shipbuilders” (Spectator)
(s)bloodthirsty, bloody-minded, sanguinarymarked by eagerness to resort to violence and bloodshed“bloody-minded tyrants”, “bloodthirsty yells”, “went after the collaborators with a sanguinary fury that drenched the land with blood” (.W.Johnson)