1. in a manner that is rude, impolite, or lacking in courtesy

Examples

• He discourteously interrupted her while she was speaking.
• The customer was treated discourteously by the staff member.
• She discourteously refused to acknowledge his greeting.
• He spoke discourteously to the elderly woman at the bus stop.
• The host discourteously dismissed his guests without saying goodbye.
• They discourteously ignored the invitation to the event.