In a complimental fashion.

Written to show that the goods which have been sent need not be returned or paid for.

(idiomatic) An insult disguised as a compliment; a compliment which can be interpreted as an insult.

(slang, idiomatic) A pretense of deference; a veiled or subtle insult.

plural of Chinese compliment

plural of backhanded compliment

A compliment which unintentionally comes across as an insult.

Alternative form of backward compliment

plural of backward compliment

A statement that sounds like a compliment, but really is not.