"mentally damaged" is a valid phrase that can be used in written English.
It is used to describe a person who has experienced psychological trauma or is displaying abnormal behavior due to mental health issues. For example: "The trauma of the war left many of the soldiers mentally damaged for years afterward."
"Some people think I must be mentally damaged since I refuse to be emotionally damaged.
History long regarded Gustav as an incompetent, stubborn, and sometimes mentally damaged figure whose foreign policy became a catastrophe.
She's left physically and mentally damaged, but it's her ever-closening relationship with Ali that saves her from withdrawing completely.
I have a number of mentally damaged individuals, who to be quite frank aren't worth the minimum wage, but want to work.
Bahr has a gift for creating mentally damaged and physically repellent characters who come alive in disturbing and finally endearing ways.
He described some of Clinton's more calculated political moves, such as his criticism of the rapper Sister Souljah, as "clumsy and transparent," and he called the campaign-season execution of a mentally damaged man on Arkansas's death row "frighteningly coldhearted".
Chompff said many of the men who have been held on Manus – most for more than three years – had been "so damaged mentally" they could not be safely returned to their home countries.
Earl Washington Jr. was both brain-damaged and mentally retarded.
Bob Herbert's March 8 column about the last-minute postponement of the execution of Antonio Richardson, who is brain-damaged and mentally retarded, brings to mind a point regarding capital punishment, whether the person to be executed is mentally competent or not.
Mr. Richardson, who is brain-damaged and mentally retarded, was part of a group of two young men and two teenage boys who raped and murdered two young women in St . Louisin 1991.
A lawyer for Antonio Marquez, a brain-damaged and mentally retarded man who was executed in Texas in 1995, would later say, "I was never able to discuss the specifics of his legal case with him, but instead we talked a lot about his favorite animals, things he liked to draw, and how he missed being able to see his brothers and sisters".
