1. not showing good manners; rude or discourteous

Examples

• It’s impolite to interrupt someone while they’re speaking.
• The customer was impolite to the waiter throughout dinner.
• She thought it would be impolite to refuse the invitation.
• His impolite behavior embarrassed his parents at the party.
• The teacher reminded students that impolite language wasn’t allowed in class.
• It’s considered impolite to arrive late without calling ahead.