impossibility 

Something that has no chance of happening.

This definition having all thumbs-up is an impossibility.

impossibility by sebastiancee November 15, 2007

levels of impossibility 

The level between a man and a woman he possibly may desire.

I most likely can't get her...1)She's got a better job than me, 2)She's too good looking, 3)She's married, 4)She just had a baby. Those are the levels of impossibility I'd have to get through to even get her attention.

levels of impossibility by JoeNJ2 July 7, 2011

True Impossibility Paradox

The True Impossibility Paradox is where something that is 100% impossible in an infinite amount of time in and a infinite number of universes somehow manages to exist or happen.

normally when you think of something having a 0.0% chance of happening or existing when it does happen or exist it means it's not actually a 0.0% chance of happening, but the paradox arises when that thing with 0.0% chance happens it still stays a 0.0% chance of happening. in the real world nothing is truly 100% impossible, if something happens or exists it never was truly 100% impossible, but in this specific scenario even though it did happen or exist it is still 100% impossible, this defying logic which creates the True Impossibility Paradox

"The appearance of a signal from a dead universe was a True Impossibility Paradox; it wasn't just unlikely, it was mathematically forbidden, yet there it was."

True Impossibility Paradox by Moondust Aeon April 2, 2026

Masnick's Impossibility Theorem

"Content moderation at scale is impossible to do well." Named after Mike Masnick of TechDirt, the theorem is that moderating user generated content such as on social media, video services, websites, blogs, etc. and the comment sections therein is inherently difficult to do correctly all the time, and becomes increasingly difficult at large scales. As a result, at large scales sites will increasingly make incorrect moderation decisions.

Facebook's suspension of a prominent journalist's account for posting a news article is an example of Masnick's Impossibility Theorem.

Masnick's Impossibility Theorem by nmslanon January 4, 2023

Impossillity 

Impossible silliness.
Often related to the heroic but hopeless attempts to address the world's biggest issues with a rubber band and a cotton bud.

Accidentally found by a wrecked P.H.D. student drafting his thesis.

Although it is tempting, air-dropping Justin B. in the core of Fukushima Reactor No. 3 is an impossillity bro.

Impossillity by N-s-K April 28, 2011

error-impossibilitator 

A mechanism which structurally, physically, or electronically blocks human beings from committing an error.

Walls, locks, and barbed-wire are examples of a structural error-impossibilitator. And the way Web pages are programmed to not allow a user to proceed to the next step until the user types their password, for example, is an example of an electronic error-impossibilitator. Condoms and other pregnancy-prevention devices are also error-impossibilitators. However, some error-impossibilitators are not fool-proof. Parents, teachers, mentors, coaches, personal trainers, security guards or bouncers are not error-impossibilitators because—unless they stand in someone's way—they can only help others prevent errors. Error-impossibilitators are of two types, those that can be circumvented, such as by cutting a barbed wire, and those which cannot be circumvented, such as the wall President Trump offered to build on the U.S.-Mexico border. Note that very few error-impossibilitators are 100% reliable because if someone wants to, they can, for example, dig a tunnel under a wall, as people have done to get to the other side.

error-impossibilitator by but for November 29, 2017

Impussability 

The inability to get pussy.

Mike thinks a new jacket can overcome his innate impussability.

Impussability by Cloak of impussability December 25, 2020