- tyrannical
- adjtyrannous, despotic, despotical, autocratic, iron-handed; arbitrary, high-handed, overweening, overbearing, dictatorial, domineering, authoritarian, imperious, peremptory, high-and-mighty, lordly, majesterial; heavy-handed, oppressive, harsh, strict, severe, hard, tough, rigorous, demanding, exacting; cruel, cold-blooded, barbarous, brutal, brutish, savage, inhuman; ruthless, merciless, pitiless, heartless, unfeeling, hard-hearted, cold-hearted; relentless, unrelenting, inexorable, implacable, inflexible, unmovable, unyielding.
A Note on the Style of the synonym finder. 2014.