Brazen

Brazen-adj
1-showing or expressing boldness and complete lack of shame
2-with an unpleasantly loud and resonant sound
3-made of brass or resembling it, especially in color or hardness (literary)

Synonyms
bold
barefaced
shameless
brash
unabashed
blatent
bald-faced
audacious
forward
discreet (antonym)