bolshevist
/ˈbɒlʃɛvɪst/Definitions
1. noun
A person who advocates or supports the principles of Bolshevism, a radical and revolutionary socialist movement.
“The politician was labeled a bolshevist for her extreme socialist views.”
2. adjective
Characterized by or advocating the principles of Bolshevism.
“The bolshevist faction within the party sought to overthrow the government.”