psychotic
[adjective]
Synonyms: mad, certifiable, demented, deranged, insane, lunatic, mental (slang), non compos mentis, unbalanced

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English Thesaurus: mentally ill, crazy, mad, insane, disturbed, ...

[TahlilGaran] English Synonym Dictionary ▲

psy‧chot‧ic /saɪˈkɒtɪk $ -ˈkɑː-/ adjective
suffering from or caused by psychosis:
psychotic patients
psychotic illness
—psychotic noun [countable]:
Like most psychotics, she was very dependent on others.
—psychotically /-kli/ adverb

[TahlilGaran] Dictionary of Contemporary English ▲

mentally ill having an illness that affects your mind and your behaviour:
Many mentally ill people are treated in the community.
He was declared mentally ill and unfit to stand trial.
crazy informal mentally ill:
I couldn’t think straight. I felt like I was going crazy (=becoming crazy).
mad old-fashioned mentally ill. This word is now usually considered offensive, and is usually used in a different meaning, when you think that someone's ideas are not sensible:
Swift himself went mad (=became mad) later in life.
a mad old woman
insane [not before noun] old-fashioned having a serious and permanent mental illness:
She went insane after her two young sons were murdered.
a hospital for the criminally insane
disturbed not behaving in a normal way because of mental or emotional problems, especially problems that are caused by bad experiences:
She teaches emotionally disturbed children.
Her experiences left her deeply disturbed.
unstable having an emotional state that often changes very suddenly:
Her mother was mentally unstable.
He lived in a small Putney flat with his ageing Aunt Bunny, and his emotionally unstable sister, Nancy.
He was too unstable to be a leader.
deranged behaving in a crazy or dangerous way, usually because of being mentally ill:
A deranged young woman entered the school and took the life of one young boy.
psychopathic having a serious and permanent mental illness that causes violent or criminal behaviour:
The film is about a psychopathic killer.
psychotic suffering from or caused by a serious mental illness that changes your character and makes you unable to behave in a normal way:
psychiatric services for chronic psychotic patients.
There is a tendency for psychotic illnesses to be inherited.
neurotic relating to or suffering from a mental illness that makes you unreasonably worried of frightened:
His mother was neurotic and insecure.
She's neurotic about her weight.
A bored or lonely horse may become so neurotic that it chases itself around in circles.

[TahlilGaran] English Thesaurus ▲