Stupididness

Used to describe something that was obviously conceived of some irrational thought.

That book is full of stupididness. Whoever wrote this pile was full of Austininity.

Stupididity

The thought or idea behind an act of stupididedness.
Refer to stupididedness for more information.

I can not believe the depth of your stupididity, milk goes in the fridge not the laundry r-tard.