(n.) The doctrine or practice of anarchists.

Bolshevikism Bolshevism Carbonarism Castroism Jacobinism Maoism Marxism New Left Old Left Sinn Feinism anarcho-syndicalism anarchy antinomianism chaos communism confusion criminal syndicalism disorder disorderliness disorganization disruption distemper extreme left extreme left wing extremism left-wing extremism lynch law misrule mob law mob rule mobocracy nihilism not ochlocracy primal chaos radicalism radicalization rebellion revolution revolutionism sans-culotterie sans-culottism syndicalism terrorism tohubohu turmoil ultraconservatism ultraism unruliness utopianism