(a.) Bold, with contempt or disregard; unblushingly forward; shameless\; saucy.

arrant arrogant audacious aweless barefaced biggety blatant bluff bold brash brassy brazen brazenfaced bumptious challenging cheeky chutzpadik cocksure cocky contemptuous contumelious crusty daring defiant defying derisive discourteous disdainful disparaging disregardful disrespectful facy flip flippant forward fresh gally gratuitous greatly daring hubristic ill-mannered impertinent impolite improvident imprudent incautious indiscreet injudicious insolent irreverent malapert nervy overbold overcareless overconfident oversure overweening pert presumptuous procacious rash regardless of consequences ridiculing rude sassy saucy shameless smart smart-alecky smart-ass temerarious unabashed unblushing uncalled-for unchary uncivil unwary wise-ass