To be more than retarded.
Dumb AF
To be of sound mind and body and because of ignorance or lack of education offender will say and do stupid things at all times. The time frame can be temporary.
Not directed toward any person based upon dated, now offensive : affected by intellectual disability : INTELLECTUALLY DISABLED
That person at the bar keeps getting the most basic things wrong he is Supasaiyantarded.
That person is over intoxicated and is now doing Supasaiyantarded things.