psychopathic
adj.adj. describing someone who lacks normal feelings like guilt or empathy. It is often used to describe people who act in a way that is very cruel or dangerous.
adj. characterised by a lack of normal emotional development or a complete absence of conscience. Often used to describe individuals who exhibit antisocial or predatory behaviour.
The movie features a psychopathic killer who shows no remorse.
The psychologist noted that the patient exhibited psychopathic traits, such as a lack of empathy and a tendency to manipulate others for personal gain.
While the term is frequently used in popular media to describe any violent criminal, clinical psychologists distinguish between a psychopathic personality and a person with a temporary mental breakdown.
From psycho- + -pathic.