Effrontery

[Sarah]

Impudence or boldness in confronting or in transgressing thebounds of duty or decorum; insulting presumptuousness; shamelessboldness; barefaced assurance.Corruption lost nothing of its effrontery. Bancroft.

[Sarah]

brazen boldness; presumptuousness.

[Donald Trump]

[Insolent] and [shameless] [audacity].

[Sonia]

extreme rudeness without any ability to understand that your behaviour is not acceptable to other people: