Antonyms of adj undiplomatic

1 sense of undiplomatic

Sense 1
undiplomatic (vs. diplomatic) -- (not skilled in dealing with others)

diplomatic (vs. undiplomatic), diplomatical -- (using or marked by tact in dealing with sensitive matters or people; "the hostess averted a confrontation with a diplomatic chenage of subject")
        => politic, smooth, suave, bland -- (smoothly agreeable and courteous with a degree of sophistication; "he was too politic to quarrel with so important a personage"; "the manager pacified the customer with a smooth apology for the error")
        => tactful, kid-glove -- (showing skill and sensitivity in dealing with people; "by diplomatic conduct he avoided antagonizing anyone"; "a tactful way of correcting someone"; "the agency got the kid-glove treatment on Capitol Hill")

Similarity of adj undiplomatic

1 sense of undiplomatic

Sense 1
undiplomatic (vs. diplomatic) -- (not skilled in dealing with others)