tactless

adjectives

lacking or showing a lack of what is fitting and considerate in dealing with others
"in the circumstances it was tactless to ask her age"
tactless, untactful
is derived from
tactlessness
antonym
tactful
revealing lack of perceptiveness or judgment or finesse
"an inept remark"; "it was tactless to bring up those disagreeable"
inept, tactless
is derived from
tactlessness