Bolshevik vs Bolshevistic

Bolshevik is a noun but Bolshevistic is not a noun.

Word	Noun	Adjective	Verb	Adverb
Bolshevik	Yes	Yes	No	No
Bolshevistic	No	Yes	No	No

As adjectives, Bolshevik and Bolshevistic are synonyms defined as:

Other synonyms of Bolshevik include Bolshevist.

Bolshevik (noun)	Bolshevistic (noun)
emotionally charged terms used to refer to extreme radicals or revolutionaries
a Russian member of the left-wing majority group that followed Lenin and eventually became the Russian communist party

Bolshevik (adjective)	Bolshevistic (adjective)
of or relating to Bolshevism	of or relating to Bolshevism