Noun
Impudence or boldness in confronting or in transgressing the bounds of duty or decorum; insulting presumptuousness; shameless boldness; barefaced assurance.
Source: Webster's dictionaryThe advice that is wanted is commonly not welcome and that which is not wanted, evidently an effrontery. Samuel Johnson
Only a person who is congenially self-centered has the effrontery and the stamina to write essays. E. B. White
he despised them for their presumptuousness Source: Internet
Another remand would do little beside give the Board a free pass for its effrontery, while delaying the alien’s entitlement to a final decision. Source: Internet
Saturninus then denounces the Andronici family for their effrontery and shocks Titus by marrying Tamora. Source: Internet
On the other hand, the implication of Alexander and Olympias seems specious: to act as they did would have required brazen effrontery in the face of a military personally loyal to Philip. Source: Internet