A failure to understand something; an illusion, misconception or misunderstanding(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "misapprehension" in a sentence
"Such a misapprehension is perhaps especially acute when the character in question is presumed to be more or less autobiographical, but even characters not immediately associated with the writer him/herself are, if Zadie Smith is to be believed, mostly an opportunity for the author to indulge in "the attempted revelation of [an] elusive, multifaceted self" -- that is, his or her own "selfhood," the "development" of which is central to the act of writing."
"A similar misapprehension is often attached to the statement “the proof of the pudding is in the eating”."
"This problem with misapprehension is very familiar, with overtones of those people (you know who you are) who think of the Internet as a bunch of "tubes," for example."