'intellectually deficient' is correct and usable in written English.
You can use it to describe someone who has difficulty understanding or learning things because of an intellectual disability or mental impairment. For example: "The student showed signs of being intellectually deficient and had trouble understanding the material."
The following exclusion criteria were adopted: intellectual quotient (IQ) below 80, that is, having intellectual classification from borderline to intellectually deficient in the Wechsler Intelligence Scale for Children Third Edition (WISC-III) (Wechsler, 1991; Figueiredo, 2002), presenting uncorrected hearing or visual deficits, and presenting neurological or psychiatric disorders.
"I find it a bit disturbing and somewhat offensive that the concept of the intellectually deficient consumer has found a voice in our legislative process," he said.
Accomplishments are few, though he takes some pride in banishing speedboats from Lake Windermere and receives a friendly wave from George W Bush, whom he describes as "a morally and intellectually deficient serial killer".
Regarding non-verbal intelligence, only 30% of the subjects were found to be in the intellectually deficient range according to the results of Raven.
Since psychopaths are not intellectually deficient, motivational externalists do not think there is any reason to believe that psychopaths cannot tell the difference between right and wrong.
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Maybe wine was a blind spot not because I was morally, emotionally, intellectually, or aesthetically deficient but because I was biologically deficient.
"If a prospective donor was deficient in some way, usually intellectually, the family power structure tended to focus on his or her presumed expendability".
Intellectually compatible?
Intellectually voracious.
