retardedment 

(Also pronounced retaddedment)

The highest level of being retarded. One you must work hard to accomplish and once you get there you can't get any better so you have no choice but to retire at that point you have reached retardedment. Then you must go to a retardedment home for the rest of your retadded life

Hey look at mark over there he is so lucky he has reached retardedment. It is something I look forward to someday

retardedment by Jwrules May 7, 2016

retardedest 

the most retarded, the highest level of retardness

That blexican is the most retardedest person i've ever met.

retardedest by disrespecting foo December 5, 2002

Retardedest 

Most retarded

You are the most retardedest people ever.

Retardedest by bigalwillis2007 October 10, 2019

Retardament 

Obstacle, usually mental, that hinders thinking and the thought process.

He failed to finish the exam because he could not overcome his retardaments

Retardament by mbmb111 January 18, 2009