What is Plato's opinion of tyranny as a way of governingthe state?

Plato believed that tyranny was the worst form of government because it granted unchecked power to a single ruler, leading to injustice and the suppression of individual freedoms. He argued that a tyrant would act out of self-interest and not the common good, ultimately causing harm to the state and its citizens. Plato favored a philosopher-king ruling in accordance with reason and virtue to avoid the pitfalls of tyranny.