Autokrat

noun
  1. A person who rules with absolute power; an autocrat. noun
    The king was considered an autokrat, wielding power without any checks or balances.
    In the novel, the protagonist rises to power as an autokrat, controlling the entire nation.
  2. A person who insists on complete obedience from others; a domineering person. noun
    His management style was that of an autokrat, demanding unquestioning compliance from his team.
    She was known as an autokrat in her household, making all decisions without consulting anyone else.