classicism vs artistic style

classicism and artistic style both are nouns.

Word	Noun	Adjective	Verb	Adverb
classicism	Yes	No	No	No
artistic style	Yes	No	No	No

As nouns, artistic style is a hypernym of classicism; that is, artistic style is a word with a broader meaning than classicism:

classicism: a movement in literature and art during the 17th and 18th centuries in Europe that favored rationality and restraint and strict forms
artistic style: the style of a particular artist or school or movement

Other hypernyms of classicism include idiom, arts, humanistic discipline, humanities, liberal arts.

classicism (noun)	artistic style (noun)
a movement in literature and art during the 17th and 18th centuries in Europe that favored rationality and restraint and strict forms	the style of a particular artist or school or movement