bohemian /bəʊˈhiːmɪən/ adjective
Unconventional in appearance, behaviour; free of regard for conventional rules and practices; living a wandering, carefree life
“She revelled in the bohemian life of Montparnasse”
Synonyms: nonconformist, unorthodox, avant-garde, offbeat, off-centre, irregular, original, alternative, experimental, artistic, idiosyncratic, eccentric