totalitarian

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Of, relating to, being, or imposing a form of government in which the political authority exercises absolute and centralized control over all aspects of life, the individual is subordinated to the state, and opposing political and cultural expression is suppressed.
• noun A practitioner or supporter of such a government.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective A system of government where the people have virtually no authority and the state wields absolute control of every aspect of the country, socially, financially and politically.
• noun An advocate of totalitarianism.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun an adherent of totalitarian principles or totalitarian government
• adjective characterized by a government in which the political authority exercises absolute and centralized control
• adjective of or relating to the principles of totalitarianism according to which the state regulates every realm of life