Rudeness

Rudeness (also called effrontery) is a display of actual or perceived disrespect by not complying with the social norms or etiquette expected within a relationship, social group, or culture.

Quotes

• This rudeness is a sauce to his good wit,
  Which gives men stomach to digest his words
  With better appetite.
  • Shakespeare, Julius Caesar, act I, sc. 2, l. 312 (Cassius, on Casca)