an understanding of something that is not correct; "he wasn't going to admit his mistake"; "make no mistake about his intentions"; "there must be some misunderstanding--I don't have a sister"
A misapprehension is a wrong idea or impression that you have about something. Men still appear to be labouring under the misapprehension that women want hairy, muscular men = misunderstanding. a mistaken belief or a wrong understanding of something = misunderstanding under a misapprehension