contradictionalist 

Someone who frequently says and/or does one thing one day and then says or does the opposite later on.

Trump is such a contradictionalist about Russia's involvement in the elections.

contradictionalist by Honey5683 August 8, 2018

contradiction

The thing that is created when the witness lies

Phoenix Wright: Your Honor! There is a contradiction in the witness' testimony!

contradiction by Darth EEEEEEEEEEEE December 14, 2020

Contradictoring 

The act of contradicting someone even though you know you are wrong.

They were contradictoring me, even though they new i was right about the dog being disobedient.

Contradictoring by anonymous February 13, 2021

Contradictionary 

When someone contradicts themselves

That’s contradictionary!

Contradictionary by Brien July 28, 2022

Contradictive Manipulation

Using a contradictory statement in an argument in order to change one's view, despite how contradicting it may be

Guy 1: Yo jack, i finally persuaded someone after so long!
Guy 2: How?
Guy 1: I used Contradictive Manipulation but it wasn't easy
Guy 2: Yeah that doesn't always work. but this time it did?
Guy 1: Yup.

Contradictive Manipulation by Joshua-1223-5 May 12, 2025

Performative contradiction 

imsoconfused#8999

Fascist is a living performative contradiction!

Performative contradiction by Chamwastaken November 20, 2020

Principle of Possible Contradiction

The radical philosophical principle that two contradictory statements can indeed both be true at the same time, challenging the foundational law of non-contradiction that has guided Western logic for millennia. The principle of possible contradiction acknowledges that reality is often more complex than binary logic allows—that someone can love you and hurt you, that a system can be both successful and unjust, that you can want something and not want it simultaneously. This principle is especially relevant in politics, economics, and human relationships, where simplistic either/or thinking fails to capture nuance. Critics say it's just an excuse for sloppy thinking; proponents say it's the only way to think clearly about a world that refuses to be simple.

Example: "She invoked the principle of possible contradiction when he said capitalism couldn't both create wealth and increase inequality. 'It's doing both,' she said. 'Right now. Simultaneously. The contradiction isn't in my argument; it's in the system. Reality doesn't care about your logic.' He couldn't accept that two contradictory things could both be true, which meant he couldn't see the world as it actually was."

Principle of Possible Contradiction by Dumu The Void February 15, 2026