那个年轻人在派对上表现得莽撞无礼。

The young man acted in a ___brash manner at the party.

他轻率的言论在会议上引起了不小的争议。

His ___brash comments caused quite a stir at the meeting.

她那身亮片连衣裙在正式晚宴上显得太过浮夸。

Her ___brash sequin dress looked out of place at the formal dinner party.