anarchism

Short definition from Wiktionary

Noun

1. 1
   A political and philosophical belief that all forms of government are undesirable, unnecessary, or unethical, and as such that society would function without a state.
2. 2
   A political and philosophical belief that proposes the establishment of a stateless society as well as the abolition of authority and hierarchy in most or all forms.
3. 3
   The state of a society being without authorities or an authoritative governing body.