This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. Deterioration of intellectual faculties, such as memory, concentration, and judgment, resulting from an organic disease or a disorder of the brain. It is sometimes accompanied by emotional disturbance and personality changes.

n. Madness; insanity. See Synonyms at insanity.

n. A progressive decline in cognitive function due to damage or disease in the brain beyond what might be expected from normal aging. Areas particularly affected include memory, attention, judgement, language and problem solving.

n. madness or insanity

n. Insanity; madness; esp. that form which consists in weakness or total loss of thought and reason; mental imbecility; idiocy.

n. An extremely low condition of the mental function; profound general mental incapacity.

n. mental deterioration of organic or functional origin

"Bleuler believed, however, that the term dementia praecox was too specific and did not always fit the clinical course, which he believed more variable than originally described."

insanity   

acute primary dementia    senile dementia    dementia paralytica    delirium    amentia    Alzheimer's disease   

korsakov's syndrome    senile dementia    polyneuritic psychosis    alcohol amnestic disorder    korsakov's psychosis    senile psychosis    presenile dementia    korsakoff's psychosis    Korsakoff's syndrome    alcoholic dementia   

senile dementia    demented    demential   

insanity    madness    idiocy   

psychosis    schizophrenia    epilepsy    impairment    aphasia    insanity    paranoia    autism    alcoholism    dysfunction