The noun impudence means being rude or not showing respect.
Synonyms are audacity, impertinence, insolence, or gall.
The word origins from Latin impudentia meaning “shamelessness”. It is an abstract noun from impudens meaning “shameless”.
Laura’s eyes flashed with anger at his impudence.
Restrain your impudence if you want to get far in this field.
She was surprised at his outrageous display of impudence.