Source : Webster's Revised Unabridged Dictionary (1913)

Brazenness \Bra"zen*ness\ (br[=a]"z'n*n[e^]s), n.
   The quality or state of being brazen. --Johnson.

Source : WordNet®

brazenness
     n : behavior marked by a bold defiance of the proprieties and
         lack of shame [syn: {shamelessness}]