contentious

Adjective

• involving or likely to cause controversy
  • a central and contentious element of the book- Tim W.Ferfuson
    

• 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
    

Related words

• Synonyms: 
  combative , disputatious , disputative , litigious