1. having or showing the polite, honorable qualities expected of a gentleman

1. in a gentlemanly manner; politely and honorably

Examples

• He opened the door for her in a gentlemanly gesture.
• The young man’s gentlemanly behavior impressed everyone at the dinner party.
• It would be more gentlemanly to let the ladies go first.
• His gentlemanly conduct earned him respect from his peers.
• She appreciated his gentlemanly offer to carry her bags.
• He behaved gentlemanly throughout the entire evening.
• The coach expected all players to conduct themselves gentlemanly on and off the field.