Com·mu·nist 
(kŏmyə-nĭst)
(kŏmyə-nĭst)n.
1.
a. A member of a movement or political party that advocates Communism.
b. A supporter of such a party or movement.
2. A Communard.
3. often communist A radical viewed as a subversive or revolutionary.
adj.
1. often communist Relating to, characteristic of, or held to resemble communism or Communists.
2. communist Supporting, advocating, or serving to further communism: communist propaganda.