What form of government is characterized by leadership unrestricted by law, constitutions, or other social and political factors within the state?

Such form of government is called dictatorship.

Explanation:

A dictatorship is a form of autocratic government. In this form of government, the power to rule lies in the hands of a single person who is called a dictator.

Such a leader rules by his/her will, unrestricted by any state law or constitution or other social and political factors.

A dictatorship can be of several types such as military dictatorship, personalist dictatorship, single-party dictatorship, etc.