indelicate vs off-colour

indelicate and off-colour both are adjectives.

Word	Noun	Adjective	Verb	Adverb
indelicate	No	Yes	No	No
off-colour	No	Yes	No	No

As adjectives, indelicate and off-colour are synonyms defined as:

indelicate and off-colour: in violation of good taste even verging on the indecent

Other synonyms of indelicate include off-color.

indelicate (adjective)	off-colour (adjective)
lacking propriety and good taste in manners and conduct	in violation of good taste even verging on the indecent
verging on the indecent
in violation of good taste even verging on the indecent