tyrannous

1 exercising power or authority without interference by others studied the tyrannous rule of Stalin, communist dictator of the Soviet Union Synonyms arbitrary, autocratic (also autocratical), czarist (also tsarist or tzarist), despotic, dictatorial, monocratic, tyrannical (also tyrannic), absoluteRelated Words authoritarian, jackbooted, oppressive, totalitarian; antidemocratic, antirepublican; high-handed, magisterial; domineering, imperious, masterful; all-powerful, almighty, omnipotent; autonomous, self-governing, self-ruling, sovereign (also sovran); unconditional, unlimitedNear Antonyms circumscribed, restrained, restricted; constitutional, lawful; democratic, republicanAntonyms limited

2 fond of ordering people around my older sister is a tyrannous bore who isn't happy unless she's in charge Synonyms authoritarian, authoritative, autocratic (also autocratical), despotic, dictatorial, domineering, imperious, masterful, overbearing, peremptory, tyrannical (also tyrannic), bossyRelated Words arrogant, assumptive, disdainful, fastuous, haughty, highfalutin (also hifalutin), high-and-mighty, high-hat, huffy, important, lofty, lordly, overweening, presuming, presumptuous, pretentious, proud, self-asserting, supercilious, superior, toplofty (also toploftical), uppish, uppity; commanding, controlling, dictating, regimental; arbitrary, high-handed, imperial; directorial, magisterial; aggressive, assertive, self-assertive; imperative; conceited, narcissistic, pompous, vain; all-powerful, almighty, omnipotent; firm, sternNear Antonyms humble, meek, modest, unassuming; amenable, docile, obedient, tractable; indecisive, irresolute; acquiescent, compliant, passive, resigned, submissive, yielding