Anarchist

From Libertarian Wiki

Anarchists are opposed to heirarchy, and the state in particular. Anarchists consider other libertarians (classic liberals) to be "minarchist". Libertarians of the liberal tradition may find some inspiration in the individualist and mutualist anarchist traditions, but generally consider other anarchist thought to be strange and self-contradictory. This is illustrated by the anarchist use of the term "libertarian socialist". Many anarchists may be unconstituted communists or nihilists.

Anarcho-capitalism is a libertarian variety of anarchist (although many anarchists seek to deny that is a form of anarchism, using unusual definitions to do so).