noun

a person who has abandoned a course of study or who has rejected conventional society to pursue an alternative lifestyle.

a college dropout

beatnik,hippy,bohemian,nonconformist,free spirit,avant-gardist,rebel,misfit,outsider,loner,eccentric,idler,layabout,loafer,lounger,good-for-nothing,freak,oddball,deadbeat,waster,bum,bad boy