adj. Not governed by the rules of Newtonian mechanics.
adj. Not governed or describable by the classical theory of electromagnetism.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. not classical
Word Usage
"Among the melodists Mr. Isacoff places Schubert, Mendelssohn and Chopin, as well as nonclassical 20th-century performers like Teddy Wilson and Bud Powell, whom he describes with wonderful sympathy."