anti fun 

Someone who is absolutely hell-bent on not having a good time or, more importantly, has a great way of curtailing others having a fun time

My boss wouldn't let me have an hour off to catch the game. He really is the anti fun

anti fun by Neil73 March 31, 2007

anti-fun league 

Shadowy group of lawyers and overprotective mothers who seek to rid the world of joy by labeling fun activities as dangerous.

"The rope bridge over the ravine is fenced off now??"
"Yeah, the anti-fun league strikes again."

anti-fun league by emmettl March 11, 2008

Anti-Funny 

This is the product of someone who misses being humorous by so wide a mark so often, that they become the antithesis of funny!

That commercial is so bad it is anti-funny!

Anti-Funny by I, Wreckerrr March 17, 2021

The Anti-Funny 

Collin

Collin is the Anti-Funny.

The Anti-Funny by ThanatosXXIV June 24, 2020

Anti-Functional

A person who has a mood swing based upon what they currently don’t have that they usually do, such as a human companion, a favorite food, or maybe an addictive substance. Mood swings usually are noticeable by the affected person

Smoker: I am anti-functional without Cigarettes
Guy: Too bad, I don’t function without Lily, I have a better addiction
Smoker: We both anti-functional then

Anti-Functional by thatonewhitedude August 16, 2019

Anti-Cult Fundamentalism

A rigid, inerrantist approach to anti‑cult ideology, treating certain texts (e.g., specific books on cults, or the works of particular ex‑members) as sacred and unquestionable. Anti‑cult fundamentalists reject any research that complicates their preferred narrative, dismiss alternative perspectives as "apologetics," and excommunicate those who raise doubts about the accepted canon. The structure mirrors religious fundamentalism, including the sense of being a chosen remnant fighting a corrupt world. This term is used to highlight the irony of adopting the very modes of thought one claims to oppose.

Anti-Cult Fundamentalism Example: "He cited the same three authors as absolute authorities and accused anyone who cited academic studies of being 'cult apologists.' Anti‑cult fundamentalism: reading like a scripture and calling it skepticism."

Anti-Cult Fundamentalism by Abzugal May 5, 2026

Antifun

The opposite of fun.

My date last night was horrible! No matter what I suggested, she just didn't want to do anything! She was so antifun!

Antifun by Babo Sang Pyo October 30, 2005