Dumosity 

A term used to describe an individual with negative intelligence.

That girl in my English class personifies dumosity.

Dumosity by Mitch Hamp March 30, 2010

Dumbosity 

One who lacks in the fields of smartosity (courtesy of mi Manolita)

You are laughing on the inside because of the extremeness of my "Dumbosity"

Dumbosity by Tito January 18, 2005

Dufosity

One dufus, mulltiple dufi (pl.)...with the ultimate "cluster" being referred to as...a dufosity.

The "Mixing Bowl" interstate interchange, located in Springfield, Va, is the pinnacle of dufosity...when it comes to poor transportation engineering.

Dufosity by pixelboy411 June 2, 2009

dumbosity 

(usually a person) an extreme dumbass. (courtesy of Lucia P.)

Jorge, you are the biggest dumbosity ever!

dumbosity by Christy P. September 15, 2007

Dumasity 

The act of being a dumbass

He really took his dumasity to the next level

Dumasity by Meowbro May 6, 2018

duosity 

A one of a kind agency that is reimagining business strategy through a connected experience. You’ve heard the saying two minds are better than one right? Duosity is able to step into the clients shoes and take on any role while combining their industry knowledge and expertise.

Duosity is the way.

duosity by Vmillion November 22, 2021