- attacker, aggressor, assailant, assaulter - someone who attacks
--1 is a kind of wrongdoer, offender
--1 has particulars:ambusher; avenger, retaliator; beast, wolf, savage, brute, wildcat; bludgeoner; bully, tough, hooligan, ruffian, roughneck, rowdy, yob, yobo, yobbo; harasser, harrier; marauder, predator, vulture, piranha; night rider, nightrider; raper, rapist; shedder, spiller; slasher; stabber; stoner, lapidator Derived forms: verb assault1, verb assault3