shameless or impudent boldness; barefaced audacity

She had the effrontery to ask for two free samples.

an act or instance of this.

noun

manners , modesty , shame , shyness

noun

arrogance , assurance , audacity , backtalk , brashness , brass * , brazenness , cheek * , cheekiness , chutzpah * , crust * , disrespect , face , gall , guff , hardihood , impertinence , impudence , incivility , insolence , lip * , presumption , rudeness , sass , sauce * , self-assurance , self-confidence , shamelessness , smart talk , temeritynotes:effrontery means shameless boldness or insulting presumptuousness while an affront is a deliberately offensive act or open insult , assumption , audaciousness , boldness , cheek , chutzpah , discourtesy , familiarity , forwardness , impudency , nerve , nerviness , overconfidence , pertness , presumptuousness , pushiness , sassiness , sauciness , brass , temerity