effrontery
🇺🇸
/ɪˈfrʌntəri/
🇬🇧
/ɪˈfrʌntəri/
Bold and rude behavior without feeling ashamed
He showed effrontery by interrupting the meeting and speaking out of turn.
他因打斷會議並不合時宜地發言而表現出厚顏無恥。