psy·​chot·​ic | \sī-ˈkä-tik \

Definition of psychotic 

: of, relating to, marked by, or affected with psychosis a psychotic patient psychotic behavior

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Other Words from psychotic

psychotic noun
psychotically \sī-​ˈkä-​ti-​k(ə-​)lē \ adverb

Synonyms & Antonyms for psychotic


balmy, barmy [chiefly British], bats, batty, bedlam, bonkers, brainsick, bughouse [slang], certifiable, crackbrained, cracked, crackers, crackpot, cranky [dialect], crazed, crazy, cuckoo, daffy, daft, demented, deranged, fruity [slang], gaga, haywire, insane, kooky (also kookie), loco [slang], loony (also looney), loony tunes (or looney tunes), lunatic, mad, maniacal (also maniac), mental, meshuga (or meshugge), moonstruck, non compos mentis, nuts, nutty, psycho, scatty [chiefly British], screwy, unbalanced, unhinged, unsound, wacko (also whacko), wacky (also whacky), wud [chiefly Scottish]


balanced, compos mentis, sane, sound, uncrazy

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Examples of psychotic in a Sentence

He was diagnosed as psychotic. the identity of the psychotic murderer known as the Zodiac Killer remains an intriguing puzzle

Recent Examples on the Web

This is literally prompt sickness derangement syndrome at a psychotic level. Fox News, "Reps. Jordan, Meadows react to Strzok-Page texts about leaks," 12 Sep. 2018 The internal documents show that care at the VA’s 133 nursing homes scored worse on average than private sector homes on key quality indicators, including rates of anti-psychotic drug prescription and residents’ deterioration. USA TODAY, "Lawmakers demand secret VA nursing home data be released after USA TODAY, Boston Globe report," 19 June 2018 Some people hallucinate and have even become psychotic. Carrie Feibel, Washington Post, "With The Rise Of Legal Weed, Drug Education Moves From ‘Don’t’ to ‘Delay’," 7 June 2018 Defense lawyer Valerie Van Leer-Greenberg argues that Ortega suffers from depression with psychotic features, which rendered her incapable of understanding the nature and consequences of the crime. Maureen O'connor, The Cut, "The Jury Is Out at the Nanny Murder Trial," 17 Apr. 2018 Cruz does not appear to have been diagnosed with any severe or psychotic mental illness, though state records indicate he was treated for depression, attention deficit hyperactivity disorder and emotional behavioral disability. Brittany Wallman,, "Parkland school shooter: Typical of today's mass killers studied by FBI," 1 July 2018 The state’s basis of Smith’s 20-year sentence was her allegedly being in a delusional and psychotic state that day caused by smoking marijuana. Ben Brasch, ajc, "Woman gets prison for ‘bizarre’ stabbing of 17-year-old Cobb cousin," 16 May 2018 Ortega’s mother-son defense lawyers, Valerie and Evan Van Leer-Greenberg, argued that Ortega was psychotic at the time. Maureen O'connor, The Cut, "The Jury and the Family Speak Out As the Nanny Trial Ends," 19 Apr. 2018 The last questions Petrovich asked Johnson were if Boys ever acted irrational, psychotic or mentally unstable while in his custody. Heather Nolan,, "Travis Boys' defense attorneys say accused cop killer is 'seriously mentally ill'," 19 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'psychotic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of psychotic

circa 1890, in the meaning defined above

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Statistics for psychotic

Last Updated

15 Dec 2018

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Time Traveler for psychotic

The first known use of psychotic was circa 1890

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English Language Learners Definition of psychotic

: having or relating to a very serious mental illness that makes you act strangely or believe things that are not true : relating to or suffering from psychosis


psy·​chot·​ic | \sī-ˈkät-ik \

Medical Definition of psychotic 

(Entry 1 of 2)

: of, relating to, marked by, or affected with psychosis

Other Words from psychotic

psychotically \-​i-​k(ə-​)lē \ adverb



Medical Definition of psychotic (Entry 2 of 2)

: a psychotic individual

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More from Merriam-Webster on psychotic

Rhyming Dictionary: Words that rhyme with psychotic

Thesaurus: All synonyms and antonyms for psychotic

Spanish Central: Translation of psychotic

Nglish: Translation of psychotic for Spanish Speakers

Comments on psychotic

What made you want to look up psychotic? Please tell us where you read or heard it (including the quote, if possible).


to make faulty or ineffective

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