Definition of "anarchist"

anarchist

/ˈæn.ə.kɪst/

noun
plural anarchists
1. One who believes in or advocates the absence of hierarchy and authority in most forms (compare anarchism), especially one who works toward the realization of such.
  Quotations
  But nothing has revived anarchism like globalization. Anarchists are now battling what they see as a concentration of power in multinational corporations.
  2000 August 5, Joseph Kahn, “Anarchism, the Creed That Won't Stay Dead; The Spread of World Capitalism Resurrects a Long-Dormant Movement”, in The New York Times‎
2. One who disregards laws and social norms as a form of rebellion against authority.
3. (by extension) One who promotes chaos and lawlessness.
  Quotations
  You have heard that Anarchists throw bombs, that they believe in violence, and that Anarchy means disorder and chaos.
  1929, Alexander Berkman, “Is Anarchism Violence?”, in Now and After: The ABC of Communist Anarchism, New York: Vanguard Press
4. One who resents outside control or influence on their life, in particular a government, and therefore desires the absence of political control.
adjective
comparative more anarchist, superlative most anarchist
1. (somewhat rare) Relating to anarchism or to anarchists; anarchistic.