1
adj alternative, artistic, arty (informal) avant-garde, eccentric, exotic, left bank, nonconformist, oddball (informal) offbeat, off-the-wall (slang) outré, unconventional, unorthodox, way-out (informal)
2
n beatnik, dropout, hippy, iconoclast, nonconformist
Antonyms
, adj bourgeois, conservative, conventional, Pooterish, square (informal) straight (slang) straight-laced, stuffy