Main entry: indecorous, indelicate
Definition: lacking propriety and good taste in manners and conduct
Usage: indecorous behavior
Antonyms: decorous
Definition: characterized by propriety and dignity and good taste in manners and conduct
Main entry: indelicate
Definition: verging on the indecent
Usage: an indelicate proposition
Antonyms: decent
Definition: conforming to conventions of sexual behavior
Main entry: indelicate, off-color, off-colour
Definition: in violation of good taste even verging on the indecent
Usage: an indelicate remark; an off-color joke
Antonyms: tasteful
Definition: having or showing or conforming to good taste
Antonyms: tasty
Definition: pleasing to the sense of taste