disputative
    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: contentious,
           combative, disputatious, disputative, litigious]

Disputative \Dis*put"a*tive\, a. [L. disputativus.]
   Disposed to dispute; inclined to cavil or to reason in
   opposition; as, a disputative temper. --I. Watts.
   [1913 Webster]