combative

Adjective

• having or showing a ready disposition to fight
  • bellicose young officers
    
  • a combative impulse
    
  • a contentious nature
    

• striving to overcome in argument
  • a dialectical and agonistic approach
    

• 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: 
  battleful , bellicose , agonistic , agonistical , contentious , disputatious , disputative , litigious