Adjectives

(a)tactfulhaving 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”
(s)tactful, kid-gloveshowing 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”