From Longman Dictionary of Contemporary Englishtyrannicalty‧ran‧ni‧cal /təˈrænɪkəl/ adjective CRUELbehaving in a cruel and unfair way towards someone you have power over → tyrant a tyrannical parent tyrannical laws
Examples from the Corpus
tyrannical• It was this last, clearly tyrannical, action which stirred Anselm to take the only countervailing measure open to him.• Lewis was a tyrannical boss who frightened and humiliated his employees.• a tyrannical boss• Dennis Quaid is the doughty knight, Bowen, battling David Thewlis' tyrannical king.• He never asked if she remembered his tyrannical parenting.• Some people felt that machines exercised a new kind of tyrannical power over them.• Thousands of refugees fled the tyrannical regime in search of political freedom.• a tyrannical regime• Adrian, the tyrannical waitress in a foreign country, had them all spellbound.• Some treated their staff in a high-handed and tyrannical way. 