"psychologically sick" is correct and usable in written English.
It refers to someone who is experiencing mental or emotional distress or illness. Example: The therapist diagnosed the patient as psychologically sick due to a history of trauma and anxiety.
Ninety percent of Chechens are psychologically sick".
Worst of all is the implication that his particular erotic style has developed because he is psychologically "sick".
Speaking to CNN, Milonov called those who allowed the wedding to happen were "psychologically sick" and he said the happy couple should be committed to a "mental asylum".
A psychologically sick man, I know it".
Improper screening of candidates for seminaries led to some psychologically sick men being ordained as priests.
Statistics obtained by the BBC found that the cases of police officers and staff in the UK taking long-term psychologically related sick leave have risen 35% in the last five years.
Still, some 6% of the population has mental illnesses that are "seriously debilitating," which makes the U.S. sicker psychologically than other developed nations.
And this gem: Their minds are perverted, they're frankly very sick people psychologically, mentally and emotionally and they see everything through the lens of homosexuality.
For instance, Jackson compared Planned Parenthood to the Ku Klux Klan last year and said that gays are "very sick people psychologically, mentally and emotionally".
Meanwhile, less-important politicians who nonetheless have the backing of the GOP, like E.W. Jackson, who's running for Lieutenant Governor of Virginia, go on the record saying horrific things about gays being "very sick people psychologically".
If people are sick it gives them help physically, mentally and psychologically".
