mentally defective

mentally defective

adjective Referring to a person who has been determined by a court, board, commission or other lawful authority—as a result of marked subnormal intelligence, or mental illness, incompetency, condition or disease—as one who:
(1)  Is a danger to him- or herself, or to others; or
(2)  Lacks the mental capacity to contract or manage his or her own affairs.

noun
(1)  A finding of insanity by a court in a criminal case;
(2)  A person found to be incompetent to stand trial, or found not guilty, by reason of lack of mental responsibility pursuant to articles 50a and 72b of the Uniform Code of Military Justice, 10 U.S.C. 850a, 876b.

mentally defective

Sexual offenses adjective Referring to a person whose mental defect renders him/her temporarily or permanently incapable of appraising the nature of his/her own conduct. See Rape.
References in classic literature ?
I tried to reason with him, but, as you know, he is mentally defective, and for answer he rushed at Number Seven to tear the coveted morsel from him.
Besides, any assumption that Pakistan was behind the incident would mean assuming that its civil and military leadership was composed entirely of the mentally defective. However, a false-flag operation by India raises memories of how Hitler created a casus belli against Poland in September 1939 to start World War II: a false-flag operation showing Polish troops (actually German convicts in Polish uniforms) killed while violating German territory.
In Russian, [phrase omitted] 'mentally defective man' can be called simply [phrase omitted] 'a sick man'; Eng.
citizenship, subjects of a qualifying domestic protection order, persons convicted of domestic violence, and persons who have been adjudicated by a court of law as mentally defective or who have been involuntarily committed to a mental institution.
Oregon is full of mentally defective, full grown children, incapable of the most mundane adult tasks," another man wrote.
Those found to be mentally defective would be sterilized, in the future CCF leader's imagined program, while those with low intelligence or moral laxity would be sent to state-run farms.
The first is that Trump is mentally defective, in which case he and his family deserve our sympathy and encouragement to seek the best mental treatment that Obamacare can provide.
SIR - There is a direct parallel between Isis murderers and the mentally defective students in the USA who attack a school to seek out and shoot down the innocent with no mercy.
Others are frivolous in their spending, but not mentally defective or ill.
whenever: (1) the victim is physically helpless, mentally defective, or mentally incapacitated." (196)
Furthermore, although the Supreme Court had the opportunity to clarify this critical language from the Brady Act in a few early cases, (96) the Court merely restated Congress's intent to keep "lethal weapons out of the hands of criminals, drug addicts, mentally disordered persons, juveniles, and other persons whose possession of them is too high a price in danger to us all to allow" (97)--in other words, those "classified as potentially irresponsible and dangerous." (98) The Court has not specifically analyzed the meanings of "mentally defective" and "committed" for purposes of gun-purchase prohibitions (99)--this definitional work has been undertaken by the ATF and the circuit courts.