1. contentious, combative, disputatious, disputative, litigious -- (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")
1.
I think it will be conceded by my most disputatious reader, that she could hardly have directed an unfortunate boy to do anything in the wide world more difficult to be done under the circumstances. - from Great Expectations by Charles Dickens