Source : Webster's Revised Unabridged Dictionary (1913)

Bareheaded \Bare"head`ed\, Barehead \Bare"head\, a. & adv.
   Having the head uncovered; as, a bareheaded girl.

Source : WordNet®

bareheaded
     adj : having the head uncovered; "caught bareheaded by the
           downpour"; "with bared head" [syn: {bared}]