psycho

P3S1Y4C3H4O1
Australia, UK/ˈsaɪ̯.kəʊ̯/Canada, US/ˈsaɪ̯.koʊ̯/

adjective

Psychotic, psychopathic, or (broadly) otherwise insane.

“I've got anthro, socio, lunch, and psycho.”

Less commonScrabble 16

Meanings

psycho1

adjectivepsycho (comparative more psycho, superlative most psycho)

comparative more psycho · superlative most psycho · alternative slang syko

  1. colloquialderogatoryPsychotic, psychopathic, or (broadly) otherwise insane.

    Oh, she's sweet but a psycho / A little bit psycho / At night she's screamin' / "I'm-ma-ma-ma out my mind"

    2018, Ava Max, Madison Love, Tix, Cook Classics, Cirkut, “Sweet but Psycho”, in Heaven & Hell, performed by Ava Max
    1 more example

    That psycho jawn had snuck a pistol into the gym while we was practicing and started shooting shit up like she was some kinda hot female action hero.

    2006, Noire [pseudonym], Thug-A-Licious: An Urban Erotic Tale, New York, N.Y.: One World, Ballantine Books, →ISBN, page 258
nounpsycho (plural psychos)

plural psychos · alternative slang syko

  1. derogatoryslangA person who is psychotic, psychopathic, or (broadly) otherwise insane.

    The loony bin up on the hill is full of psychos.

    1 more example

    Oh, she's hot but a psycho / So left but she's right, though / At night she's screamin' / "I'm-ma-ma-ma out my mind"

    2018, Ava Max, Madison Love, Tix, Cook Classics, Cirkut, “Sweet but Psycho”, in Heaven & Hell, performed by Ava Max

    Synonyms: freak, loony, nutcase, wacko

  2. broadlyderogatoryslangA person who acts in a bizarre or dangerous manner.

    She complained that he was a psycho for driving at such a high speed in heavy traffic.

    Synonyms: creep, freak, loose cannon, weirdo

psycho2

nounpsycho (uncountable)

alternative slang syko

  1. informaluncountableA class, at a college or university, in which psychology is taught.

    I've got anthro, socio, lunch, and psycho.

Synonyms & antonyms

nounA person who is psychotic, psychopathic, or (broadly) otherwise insane.

nounA person who acts in a bizarre or dangerous manner.

More synonyms by meaning

nouna person afflicted with psychosis

Similar
psychoticpsychotic person
Broader
sick persondiseased personsufferer

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

psycho · adjective, noun

Clipping of psychotic or psychopath + -o (“person with characteristic”). Compare sicko.

Full word history & related roots →

Translations

Bulgarian психопат
  • психопат (psihopat)psychotic or otherwise insane person
Chinese Cantonese 黐線佬 /黐线佬
  • 黐線佬 /黐线佬 (ci¹ sin³ lou²)person acting in a bizarre or dangerous manner
Chinese Mandarin 精神病人, 精神病患者
  • 精神病人 (jīngshénbìngrén)psychotic or otherwise insane person
  • 精神病患者 (jīngshénbìnghuànzhě)psychotic or otherwise insane person
  • 瘋子 /疯子 (fēngzi)person acting in a bizarre or dangerous manner
  • 狂人 (kuángrén)person acting in a bizarre or dangerous manner
Danish psyko
  • psyko(colloquial or pejorative) Psychotic
Finnish sekopää, kaistapää
  • sekopääpsychotic or otherwise insane person
  • kaistapääpsychotic or otherwise insane person
  • psykopsychotic or otherwise insane person
  • kaistapääperson acting in a bizarre or dangerous manner
French psychopathe
  • psychopathepsychotic or otherwise insane person
German psycho, Psycho
  • psycho(colloquial or pejorative) Psychotic
  • Psychopsychotic or otherwise insane person
  • Psychopathpsychotic or otherwise insane person
  • Verrückteperson acting in a bizarre or dangerous manner
Greek ψυχώ
  • ψυχώ (psychó)person acting in a bizarre or dangerous manner
Hebrew פסיכי, פסיכי
  • פסיכי (psikhi)(colloquial or pejorative) Psychotic
  • פסיכי (psikhi)psychotic or otherwise insane person
Indonesian tak waras
  • tak waras(colloquial or pejorative) Psychotic
Japanese 狂人
  • 狂人 (kyōjin)person acting in a bizarre or dangerous manner
Portuguese psicótico, psicopático
  • psicótico(colloquial or pejorative) Psychotic
  • psicopático(colloquial or pejorative) Psychotic
  • louco(colloquial or pejorative) Psychotic
  • psicopata(colloquial or pejorative) Psychotic
  • psicopatapsychotic or otherwise insane person
  • psicóticopsychotic or otherwise insane person
  • loucopsychotic or otherwise insane person
  • doidopsychotic or otherwise insane person
  • insanopsychotic or otherwise insane person
  • psicopataperson acting in a bizarre or dangerous manner
  • psicóticoperson acting in a bizarre or dangerous manner
Russian псих, псих
  • псих (psix)psychotic or otherwise insane person
  • псих (psix)person acting in a bizarre or dangerous manner
Spanish psicópata
  • psicópatapsychotic or otherwise insane person
Swedish psykopatisk, tokig
  • psykopatisk(colloquial or pejorative) Psychotic
  • tokig(colloquial or pejorative) Psychotic
  • vansinnig(colloquial or pejorative) Psychotic
  • psykfallpsychotic or otherwise insane person
  • psykpsychotic or otherwise insane person
  • psykopsychotic or otherwise insane person
  • galningperson acting in a bizarre or dangerous manner
Turkish sayko
  • saykopsychotic or otherwise insane person

Rhymes & wordplay

Rhymes with psycho

All rhymes →

Anagrams

Cite this entry
APA

psycho. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/psycho

MLA

“psycho.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/psycho. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “psycho,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/psycho.

Source: psycho on Wiktionary, CC BY-SA 4.0.