(n)classical music, classical, serious musictraditional genre of music conforming to an established form and appealing to critical interest and developed musical taste
(a)classical, classicof or relating to the first significant period of a civilization, culture, area of study, etc.“classic Chinese pottery”, “classical Marxism”
(s)classical, classicwell-known and long-established in form or style“a classical ballet”, “classic double-breasted suit”, “the classic struggle between good and evil”
(s)classical, Greco-Roman, Graeco-Romanof or pertaining to or characteristic of the ancient Greeks and Romans, especially their art, literature, or culture“classical mythology”, “the classical world”