oppressor

a person who uses power or authority in a cruel, unjust, or harmful way the dictatorship had scarcely been overthrown when the formerly oppressed suddenly abandoned their democratic ideals and became the oppressors Synonyms caesar, dictator, führer (or fuehrer), despot, pharaoh, strongman, tyrannizer, tyrantRelated Words autarch, autocrat, monocrat; authoritarian, Big Brother, paramount, potentate, totalitarian; caudillo, overlord, warlord; boss, captain, chief, dominator, kingpin, leader, master, overlord, ruler; king, lord, monarch, prince, queen, sovereign (also sovran); baron, czar (also tsar or tzar), magnate, mogul, tycoon; disciplinarian, discipliner, enforcer, martinet, taskmaster