adj. Exhibiting the behaviors and personality traits of a psychopath.
The Century Dictionary and Cyclopedia
Pertaining to or of the nature of psychopathy.
Pertaining to the cure of the sick by psychic means.
n. An insane or nearly insane patient.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. suffering from an undiagnosed mental disorder
Word Usage
"The study also showed increases in "psychopathic deviation," which is loosely related to psychopathic behavior in a much milder form and is defined as having trouble with authority and feeling as though the rules don't apply to you."