Aggressor
Ag`gres´sor
| n. | 1. | The person who first attacks or makes an aggression; he who begins hostility or a quarrel; an assailant. |
| Noun | 1. |  aggressor - someone who attacks |
| 2. | aggressor - a confident assertive person who acts as instigator |
AGGRESSOR, crim. law. He who begins, a quarrel or dispute, either by threatening or striking another. No man may strike another because he has threatened, or in consequence of the use of any words.
aggress, ambusher, assailant, assaulter, attack, attacker, avenger, beast, bludgeoner, brute, bully, harasser, harrier, hooligan, lapidator, marauder, night rider, nightrider, offender, piranha, predator, raper, rapist, retaliator, roughneck, rowdy, ruffian, savage, shedder, slasher, spiller, stabber, stoner, tough, vulture, wildcat, wolf, wrongdoer, yob, yobbo, yobo