An insult that seems like a compliment until you think about it.
Example: Person 1: Did you cut your hair? It looks nice, although there's a lot of gray in it.
Person 2: Um, thanks.
People who like to use complisults are usually people who have no clue, are narcissists, have no social skills or tact, or they just feel threatened and insecure, i.e., lizard- titted middle- aged menopausal women who are attention grabbing twits.