adj. 25B6; adjective IMPERTINENT, insolent, cheeky, cocky, brazen; presumptuous, forward, disrespectful, insubordinate, flippant, bumptious, brash; rude, impolite, ill-mannered, discourteous, ill-bred; informal brass-necked, saucy, lippy; N. Amer. informal sassy; archaic malapert, contumelious.
polite.