Effrontery is a noun that means insolent and impertinent behavior.
Our word of the day is derived from the Latin word frons (fronce) which means ‘brow’ or ‘forehead’ combined with the prefix E-F, meaning ‘without.’ If this seems like an unlikely origin of a word for insolent behavior, keep in mind that the Romans thought of the brow as the seat of a person’s modesty much in the same we think of the heart as the seat of a person’s love life. So effrons (EE Fronce) meant ‘without shame.’
I can’t the effrontery Erica’s children showed in front of her. I hate to think how my mother would have reacted if me or my sister behaved that way.