Detrimental 

Detrimental is an adjective that means harmful or tending to cause harm. It can also be used to mean prejudicial, disadvantageous or counterproductive.

Most people realise that smoking is detrimental to your health.

Detrimental by AKACroatalin August 1, 2015

Depremental 

1. A state between insanity and normality that is happy but sadistic that evolves into a state of mind that is sadistic, ironic, happy, sardonic, depressionistic or the combination of all of the above.

2. The state before losing ones insanity only to stay there and not go into psychosis.

3. A form of narcissism that works against other people but without admiration for one's self.

4. A outlook on life that see's it as nothing but flat, mundane, lifeless and sad. Often this is directed towards people in the form of my raid frustration but because the person was a general idiot for not realising the obvious.

Example One:
Bill: "Well I think I'm depremental"
Bob: "Have you tried looking in the mirror lately you might find it there."

Example Two:
Private: "I don't want to die"
Sargeant: "Private, just go and bite the shiny bullet and keel over."

(Second person in sentence would be depremental.)

Depremental by Mike Denzil May 8, 2004

Detrimental 

of much or great significance or consequence

a detrimental event in world history

Detrimental by wikipedia dictionary online April 5, 2014

Weed is detremental to you. 

Im just doing this for a health assigment and Im too lazy to do this shit properly.

Weed is detremental to you. Is me just being too lazy to desgin a mug so im using this.

Weed is detremental to you. by Andrewlicker2000 September 20, 2022

detrimentalism 

1- N. The act and/or process of causing harm or damage to everyone around you in a Call of Duty game.

GGlogics keeps failing to properly setup the rules for the game, therefore, he is the definition of detrimentalism.

detrimentalism by imNACHO December 3, 2014

Detrimentally horny 

Down bad horny.

Doinked is detrimentally horny.

Detrimentally horny by qiiett420 January 23, 2021

Detrimental Information 

Compound noun. Information that one is better off not knowing or being exposed to.

Bro 1: That chick you're crushing on was enthusiastically promiscuous for a year after she divorced.

Bro 2: That's detrimental information, man.

Detrimental Information by Bro Ally September 3, 2013