Synonyms for Indelicate (same or very similar meaning)
WordNet sense 1 (in violation of good taste even verging on the indecent):
off-color, off-colour
WordNet sense 2 (lacking aesthetic or social taste):
tasteless
WordNet sense 3 (lacking propriety and good taste in manners and conduct):
indecorous
WordNet sense 4 (offensive to good taste especially in sexual matters):
indecent
From the ODE community, based on WordNet
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