adj.
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"
adj.
having or showing a sense of what is fitting and considerate in dealing with others; "she was tactful enough not to shatter his illusion"; "a tactful remark eased her embarrassment"
adj.
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"