1. the quality of being overly bold, confident, or aggressive in a rude or disrespectful way

Examples

• His brashness during the job interview cost him the position.
• The young politician’s brashness alienated many experienced colleagues.
• She was known for her brashness in challenging authority figures.
• The coach criticized the player’s brashness on the field.
• His brashness masked his deep insecurity about his abilities.
• The CEO’s brashness in negotiations sometimes backfired.