bo·he·mi·an 
(bō-hēmē-ən)
(bō-hēmē-ən)n.
A person with artistic or literary interests who disregards conventional standards of behavior.
[French bohémien, from Bohême, Bohemia (from the unconventional lifestyle of the Romani people, erroneously supposed to have come from there).]
bo·hemi·an adj.
bo·hemi·an·ism n.