1. relating to diplomacy or the work of diplomats
2. skilled in dealing with people in a tactful way that avoids offense

Examples

• The diplomatic mission was successful in negotiating the treaty.
• She works for the diplomatic corps at the embassy.
• He gave a diplomatic response to avoid hurting anyone’s feelings.
• The manager handled the complaint in a diplomatic manner.
• It would be more diplomatic to phrase your criticism gently.
• The diplomatic pouch contained classified documents.
• She’s very diplomatic when dealing with difficult customers.