psycho

[sahy-koh] / ˈsaɪ koʊ /

ADJECTIVE

insane

Synonyms

STRONG

crazy loony nuts psychoneurotic psychotic

WEAK

certifiable crazed mad mental psychopathic screwy unbalanced

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The film is part psycho kidnapping horror, part shark thriller and part tribute to Madonna’s “Ray of Light.”

From Salon • Jun. 8, 2025

Then from there we landed on the psycho idea.

From Los Angeles Times • Aug. 26, 2024

"People started calling these young girls crazy, hysterical and psycho," the writer explains.

From BBC • Jul. 17, 2024

“No! Bad, psycho governor! No! Sit down! Bad! Stay! Stay away from dogs!”

From New York Times • Apr. 30, 2024

If anything, Noah should have talked to her before he decided to go on a psycho GIF-creating spree.

From "Here to Stay" by Sara Farizan