| A | B |
| animosity | n. hatred, ill will |
| antagonism | n. hatred or hostility |
| bellicose | adj. of a quarrelsome nature; eager to fight; warlike; belligerent |
| belligerent | adj. taking part in war or fighting; ready to fight |
| cantankerous | adj. bad tempered; quarrelsome |
| captious | adj. made for the sake of quarreling; quibbling |
| contentious | adj. quarrelsome; belligerent |
| disputatious | adj. likely to dispute or argue |
| polemical | adj. inclined to argue or debate; controversial |
| predator | n. one who takes advantage of another, exploits or feeds on another; a strong adversary or rival |
| pugnacious | adj. eager to fight; belligerent |