Learn That Word

Synonyms for Bolshevik (same or very similar meaning)

WordNet sense 1 (a Russian member of the left-wing majority group that followed Lenin and eventually became the Russian communist party):

WordNet sense 2 (emotionally charged terms used to refer to extreme radicals or revolutionaries):
red, Marxist, bolshie, bolshy

WordNet sense 3 (of or relating to Bolshevism):

From the ODE community, based on WordNetadd/edit