1.Definition: (physics) relating to or based on concepts that preceded the theories of relativity and quantum mechanics
2.Definition: of or pertaining to or characteristic of the ancient Greeks and Romans, especially their art, literature, or culture
"Classical mythology", "The classical world"
3.Definition: of or relating to music in the European tradition, such as symphonies and operas
4.Definition: of or relating to the first significant period of a civilization, culture, area of study, etc.
5.Definition: of or relating to the languages used by ancient standard authors
6.Definition: of or relating to the study of the literary works of ancient Greece and Rome
"A classical scholar"
7.Definition: well-known and long-established in form or style
"A classical ballet"