Meaning of “psychopath” in the English Dictionary

"psychopath" in British English

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psychopathnoun [ C ]

uk /ˈsaɪ.kə.pæθ/ us /ˈsaɪ.kə.pæθ/

specialized psychology a person who has no feeling for other people, does not think about the future, and does not feel bad about anything they have done in the past

informal psycho someone who is very mentally ill and dangerous

adjective uk /ˌsaɪ.kəˈpæθ.ɪk/ us /ˌsaɪ.kəˈpæθ.ɪk/ informal psycho

A series of unsolved murders on the island has raised fears that a psychopathic serial killer is on the loose.

(Definition of “psychopath” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"psychopath" in American English

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psychopathnoun [ C ]

us /ˈsɑɪ·kəˌpæθ/ infml psycho

a person who is likely to commit violent criminal acts because of a mental illness that causes the person to lack any feelings of guilt

adjective us /ˌsɑɪ·kəˈpæθ·ɪk/

psychopathic tendencies

(Definition of “psychopath” from the Cambridge Academic Content Dictionary © Cambridge University Press)