<p><strong>Noun</strong></p><ul><li>A spectrum of mental disorders characterized by emotional blunting, intellectual deterioration, social isolation, disorganized speech and behavior, delusions, hallucinations, or a combination of any of these symptoms.</li><li>Formerly dementia praecox.</li><li>Sometimes offensive: a state characterized by the coexistence of contradictory or incompatible elements.</li></ul>