1. showing an aggressive lack of respect; impudent or overly confident
2. hasty and unthinking; rash

Examples

• The brash young executive interrupted the CEO during the meeting.
• His brash behavior at the party offended many guests.
• She made a brash decision to quit her job without having another one lined up.
• The brash teenager talked back to his teacher.
• It was brash of him to assume he would get the promotion.
• Her brash comments about the company’s policies got her in trouble.
• The politician’s brash promises seemed unrealistic to voters.