What is a government with a single ruler with unlit ed powers?

A government with a single ruler with unlimited powers is known as an autocracy. In this system, the ruler holds absolute authority and makes decisions without the need for consent from a legislative body or the public. Autocracies can take various forms, including absolute monarchies and dictatorships, where the leader often employs force or coercion to maintain control. This concentration of power typically leads to limited political freedoms and restricted civil liberties for citizens.