tyrannical
Definitions
Exercising power in a cruel, arbitrary, or oppressive way.
Characteristic of a tyrant; despotic or dictatorial.
Examples
The citizens rose up to overthrow the tyrannical regime that had oppressed them for decades.
His tyrannical management style made it impossible for employees to voice their concerns without fear of retaliation.
The historical novel depicts the life of a peasant living under the rule of a tyrannical king.
Synonyms
dictatorial autocratic despotic oppressive authoritarian absolute arbitrary