usability 

A word assosiated with how one rates an objects usefulness, usability.

Q: "So, how's the usability of this Cut'n'Slice-A-Matic©?"
A: "It's a fairly high usability object, Bob".
or
A: "Not sold in stores, Bob, cuz it's a piece of shit":

usability by Crapper McGee January 24, 2004

inability 

Lack of ability, lack of power;

*His/her inability to find work.

*But that still doesn't excuse the inability to get rid of incompetent teachers.

...able

inability by heeed March 8, 2012

funability

the potential amount of fun to be had in any given situation

This trip had amazing funability before it was spoiled by the rain.

funability by tink29 September 12, 2016

unabilitating

When something is difficult to handle properly.

This popcorn is unabilitating because I can't grab a good handful of it.

unabilitating by Spencer Jr. May 17, 2014

usability 

n. the existence or degree of the ability to be used or put into operation

The shattered bits of discarded beer bottles offer very little usability for those who drive; why, then, do people insist on throwing them on the streets?

usability by Chantizzle January 21, 2004

usatility 

Of utility to the United States of America (or her allies or some elite subset thereof) for achieving political aims and economic goals.

Arms manufacturers, Big Oil, warmongers and peaceniks, various missionaries and contractors alike, there were many who never once misunderestimated the usatility of President George Walker Bush and his War on Terror.

usatility by Ironheart January 23, 2011

inability 

the state of being unable to do something.
"his inability to accept new ideas"
synonyms: lack of ability, incapability, incapacity, powerlessness, impotence, helplessness;

Inability to defeat someone in a game of check mate been hacked

inability by ... Zjdbckdnznsjd September 17, 2019