Source : Webster's Revised Unabridged Dictionary (1913)

Classicism \Clas"si*cism\, n.
   A classic idiom or expression; a classicalism. --C. Kingsley.

Source : WordNet®

classicism
     n : a movement in literature and art during the 17th and 18th
         centuries in Europe that favored rationality and
         restraint and strict forms; "classicism often derived its
         models from the ancient Greeks and Romans" [ant: {romanticism}]