adj. 1 a of or involved in diplomacy. b skilled in diplomacy. 2 tactful; adroit in personal relations. 3 (of an edition etc.) exactly reproducing the original. diplomatic bag a container in which official mail etc. is dispatched to or from an embassy, not usu. subject to customs inspection. diplomatic corps the body of diplomats representing other countries at a seat of government. diplomatic immunity the exemption of diplomatic staff abroad from arrest, taxation, etc. diplomatic service Brit. the branch of public service concerned with the representation of a country abroad. diplomatically adv.
[ mod.L diplomaticus and F diplomatique f. L DIPLOMA ]