noun
flagrant disregard of courtesy or propriety and an arrogant assumption of privilege
had the effrontery to insult her father
Synonyms: brashness, brass, cheek, chutzpah, confidence, ||crust, face, gall, nerve, presumption; compare insolence
Related Word: audacity, hardihood, temerity; assurance, self-assurance, self-confidence; brazenness, impudence; impertinence, insolence
Contrasted words: courtesy, grace, propriety