misassume

to incorrectly assume

Amanda's parents misassumed that her reluctance to do her homework was because of her laziness, but it was really because of her recent fight with her boyfriend.

misassume by MirandaJM June 21, 2011

misargument

Trying to point out a flaw in your opponent's logic by using an example or argument that is likewise (or even more so) logically flawed, inapplicable, or even inadvertently confirming the other point of view.

"You say you disagree with me, but you're so stupid you don't even realize that your logic actually favors the very point I'm making. What you're saying constitutes a misargument."

"The analogy you're using is not even remotely applicable to the issue we're discussing. It's a complete and total misargument."

misargument by LawyerTLW June 13, 2013