contentious (
http://definr.com/contentious)
adj 1: inclined or showing an inclination to dispute or disagree,
even to engage in law suits; "a style described as
abrasive and contentious"; "a disputatious lawyer"; "a
litigious and acrimonious spirit" [syn:
disputatious,
disputative,
litigious]
2: involving or likely to cause controversy; "a central and
contentious element of the book"- Tim W.Ferfuson
3: having or showing a ready disposition to fight; "bellicose
young officers"; "a combative impulse"; "a contentious
nature" [syn:
battleful,
bellicose,
combative]