/ ˈtæktfl; NAmE / adjective
careful not to say or do anything that will annoy or upset other people
SYN diplomatic :
That wasn't a very tactful thing to say!
I tried to find a tactful way of telling her the truth.
OPP tactless
► tact·ful·ly / -fəli; NAmE / adverb :
a tactfully worded reply
I tactfully suggested he should see a doctor.