Stupidity 

Something Urban Dictionary has a surplus of.

You need to search far and wide to find a definition on Urban Dictionary that lacks stupidity

Stupidity by Mr. Awesome II April 30, 2015

Stupidity 

A failure to see things as they really are, the failure to be open to new information. A human being that is unaware of their surroundings. The learned corruption of learning. Unfortunately for us, stupidity rules the world.

George W. Bush isn't stupid because of his inability to speak. Rather, George W. Bush is stupid because he refuses to learn about policies, history, & public speaking.

Sources: Stupidity Documentary - Albert Nerenberg (Director) Rina Barone (Head of Research)

Go on YouTube and watch the BBC Documentary: Stupidity

Open your third eye

Stupidity by nicjam December 20, 2013

Stupidity 

The perpetual trademark of our species. The random and unpredictable state of mind that causes and governs wars, unwanted pregnancies, political actions, divorces, ripoffs, reality TV shows, copycat crimes, cults, self-injury, and lawsuits.
Since the stupid in our midst are breeding uncontrollably while the intelligent minority are dying out, one can easily predict that our stupidity will far outpace our technological progress within a few decades, and propel us back to the Stone Age or extinction with in a few centuries.

You can never go broke by underestimating the stupidity of the human race.

Stupidity by sarcastic December 13, 2003

Stupidity 

N. A very common and largely ignored affliction. Approximately 97% of all people suffer from it. They can be split into two fairly equal halves: Democrats and Republicans.

"Stupidity rules this world by sheer force of numbers"

Stupidity by do I have to put something here? June 2, 2004

stupidity 

Stupidity is knowing better but doing something anyways. Not to be confused with ignorance.

Smoking crack ruins lives...people do it anyways. A fine example of stupidity.

stupidity by The mighty anonym June 8, 2007

stupidity 

A very dangerous, usually fatal disease in which a person becomes stupid.

"Oh my god, I cought stupidity, I duuuhhh..."

stupidity by The Jonomonkey April 19, 2004

stupidity 

See George W. Bush

George W. Bush is a pillar of stupidity

stupidity by Blargh May 18, 2004