The Collaborative International Dictionary of English v.0.48:
Brazenness \Bra"zen*ness\ (br[=a]"z'n*n[e^]s), n. The quality or state of being brazen. --Johnson. [1913 Webster]WordNet (r) 3.0 (2006):
brazenness n 1: behavior marked by a bold defiance of the proprieties and lack of shame [syn: shamelessness, brazenness]