schizophrenia

noun

schizo·​phre·​nia ˌskit-sə-ˈfrē-nē-ə How to pronounce schizophrenia (audio)
1
medical : a mental illness that is characterized by disturbances in thought (such as delusions), perception (such as hallucinations), and behavior (such as disorganized speech or catatonic behavior), by a loss of emotional responsiveness and extreme apathy, and by noticeable deterioration in the level of functioning in everyday life

Note: Schizophrenia often involves an inability to orient oneself with reality, a withdrawal from social interactions, and a failure to integrate thoughts with emotions so that emotional expression is inappropriate. There are several subtypes of schizophrenia, including paranoid schizophrenia and those types marked by catatonia or hebephrenia.

2
: contradictory or antagonistic qualities or attitudes
both parties … have exhibited schizophrenia over the desired outcomeElizabeth Drew
schizophrenic adjective or noun
schizophrenically adverb

Examples of schizophrenia in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Her mom rarely left bed because the medication that tamed her schizophrenia made her lethargic. Jayme Fraser, USA Today, 16 June 2025 With less qualified experts to treat mental health conditions, more Americans could suffer from drug overdoses and mental conditions like schizophrenia. Omer Awan, Forbes.com, 8 June 2025 Getting that behind-the-scenes look at how schizophrenia affects Joe, and pushing back on the assumptions made about those who suffer from the disorder, was of paramount importance to Liu as a producer. Katcy Stephan, Variety, 6 June 2025 The film, which premieres at Tribeca, stars Lucy Liu as Irene, an intrepid Chinese mother battling a terminal illness while navigating the painful realities of her son’s worsening schizophrenia. Lovia Gyarkye, HollywoodReporter, 6 June 2025 See All Example Sentences for schizophrenia

Word History

Etymology

borrowed from German Schizophrenie, from schizo- schizo- + Greek phren-, phrḗn "midriff, seat of the passions, mind, wits" + German -ie -ia entry 1, after Hebephrenie hebephrenia, Paraphrenie "mental illness with delusional symptoms" — more at frenetic

Note: The German term was introduced by the Swiss psychiatrist Eugen Bleuler (1857-1939) in a lecture, "Die Prognose der Dementia Praecox (Schizophreniegruppe)," given at the annual meeting of the Deutsche Verein für Psychiatrie (German Union for Psychiatry) in Berlin on April 24, 1908. The text of the lecture, augmented by restorations abbreviated from the oral presentation, was published in the Allgemeine Zeitschrift für Psychiatrie und psychisch-gerichtliche Medizin, 56. Band (1908), pp. 436-64. The word is introduced in Bleuler's opening remarks: "Im Interesse der Diskussion möchte ich nochmals hervorheben, dass es sich bei dem Kräpelinschen Dementia praecox weder um eine notwendige Dementia, noch um eine notwendige Praecocitas handelt. Aus diesem Grunde und weil man von dem Ausdruck Dementia praecox keine adjektivischen und substantivischen Weiterbildungen machen kann, erlaube ich mir, hier das Wort Schizophrenie zur Bezeichnung des Kräpelinschen Begriffes zu benützen. Ich glaube nämlich, dass die Zerreissung oder Spaltung der psychischen Funktionen ein hervorragendes Symptom der ganzen Gruppe sei, und werde dies am anderen Orte begründen." ("In the interests of discussion I would like to emphasize once again that Kraepelin's dementia praecox is neither necessarily a form of dementia, nor a matter of early onset. On this basis, and because it is not possible to derive further adjectives or nouns from the expression dementia praecox, I allow myself here to employ the word schizophrenia to designate Kraepelin's concept. I believe that the tearing apart or splitting of psychic functions is a prominent symptom of the whole group, as I will substantiate elsewhere.") — The pronunciation of -z- as /ts/ presumably reflects the influence of the German source.

First Known Use

1908, in the meaning defined at sense 1

Time Traveler
The first known use of schizophrenia was in 1908

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Cite this Entry

“Schizophrenia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/schizophrenia. Accessed 20 Jun. 2025.

Kids Definition

schizophrenia

noun
schizo·​phre·​nia ˌskit-sə-ˈfrē-nē-ə How to pronounce schizophrenia (audio)
: a serious mental illness that is a psychosis and is characterized by a distorted view and understanding of the real world, by greatly reduced ability to carry out one's daily tasks, and by abnormal ways of thinking, feeling, and behaving

Medical Definition

schizophrenia

noun
schizo·​phre·​nia ˌskit-sə-ˈfrē-nē-ə How to pronounce schizophrenia (audio)
: a mental illness that is characterized by disturbances in thought (as delusions), perception (as hallucinations), and behavior (as disorganized speech or catatonic behavior), by a loss of emotional responsiveness and extreme apathy, and by noticeable deterioration in the level of functioning in everyday life

Note: Schizophrenia often involves an inability to orient oneself with reality, a withdrawal from social interactions, and a failure to integrate thoughts with emotions so that emotional expression is inappropriate. There are several subtypes of schizophrenia, including paranoid schizophrenia and those types marked by catatonia or hebephrenia.

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