| adjective | inclined or showing an inclination to dispute or disagree, even to engage in law suits “a style described as abrasive and contentious” |
| adjective | involving or likely to cause controversy; - Tim W.Ferfuson “a central and contentious element of the book” |
| contention | noun | a contentious speech act; a dispute where there is strong disagreement |
| contentiousness | noun | an inclination to be quarrelsome and contentious |
| dispute | noun | a disagreement or argument about something important |
| dispute | verb | have a disagreement over something |
| litigiousness | noun | a quarrelsome disposition to engage in or carry on lawsuits |