contentious

(s) 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
combative, disputatious, disputative, litigious,
(s) involving or likely to cause controversy
- "a central and contentious element of the book"- Tim W.Ferfuson

combative disputatious disputative litigious

contention

contentiousness