Bohemian
Webster's Dictionary [1]
(1): (n.) The language of the Czechs (the ancient inhabitants of Bohemia), the richest and most developed of the dialects of the Slavic family.
(2): (n.) A restless vagabond; - originally, an idle stroller or gypsy (as in France) thought to have come from Bohemia; in later times often applied to an adventurer in art or literature, of irregular, unconventional habits, questionable tastes, or free morals.
(3): (n.) Of or pertaining to a social gypsy or "Bohemian" (see Bohemian, n., 3); vagabond; unconventional; free and easy.
(4): (n.) A native of Bohemia.
(5): (a.) Of or pertaining to Bohemia, or to the language of its ancient inhabitants or their descendants. See Bohemian, n., 2.
The Nuttall Encyclopedia [2]
Name given to one who lives by his wits and shuns conventionality.