adj. 25B6; adjective
an indelicate question : INSENSITIVE, tactless, undiplomatic, impolitic, indiscreet.
an indelicate sense of humour : VULGAR, rude, crude, bawdy, racy, risqué, ribald, earthy, indecent, improper, naughty, indecorous, off colour, dirty, smutty, salacious; informal blue, nudge-nudge, raunchy; Brit. informal saucy.