Mentally deranged, especially as manifested in a wild or aggressive way.
Our friends all think we’re crazy.
The movie portrayed the antagonist as a crazy villain with unpredictable and erratic behavior.
The witness described the car chase as crazy, with vehicles weaving in and out of traffic at high speeds.
After losing his job, he went a bit crazy and started making impulsive decisions without considering the consequences.
The character in the horror novel was haunted by the crazy visions that tormented their mind.
