imbasillic 

of or partaining to an imbasil

Dating a man-whore would be a rather imbasillic thing to do, wouldn't it?

imbasillic by joe somebody December 24, 2005

Imbicillic

Someone who is stupid, very very very stupid.

“She thought water was purple”
“How imbicillic”

Imbicillic by Ohno May 10, 2018

Imbisilic 

That one person in every friend group that is a absolute dumbass 🤦🏾 ♂️

Dumbass : Bro explain to me how PlayStation is better then Xbox

Me: Okay, let me explain it in a way even a imbisilic like you can understand

Imbisilic by Lowkeyyute July 26, 2022