falseity 

the opposite of being false

Dave: his laptop is a windows one. of course it hates christmas
Spencer: at least it's still better than mac
Charlie: i believe that statement is an absolute falseity

falseity by goosedork December 13, 2009

Falsity 

Not being truthful
An UnTruthitude

That is a falsity your honor, she did not tell me I couldn't drive her car.

Falsity by B. November 15, 2003

Falseitivity 

A fact that is 100% false

Its a falseitivity that sara thinks she right all the time

Falseitivity by Drummer Boy A10E9E June 14, 2018

FALSEIFY

To make something false as in text or a person.

You always Falseify my Text

or

You are falsefing my Food

FALSEIFY by Snakeman Da Wabit December 31, 2009