despotocracy

Example:His tyrannical rule led to widespread uprising.

Definition:A form of government or administration marked by absolute power on the part of the ruler or rulers, and characterized by cruel and improper exercise of that power, often resulting in the oppression of the populace.

Example:The president tried to impose an autocratic rule but was resisted by the parliament.

Definition:A system of government in which the monarch or dictator holds supreme and unlimited power, often exercising it oppressively or dictatorial manner.

Example:Following the war, the country descended into a dictatorship under a single ruler.

Definition:A form of government in which a ruler holds the enormous power and in which opposition to his or her rule is forbidden.