A patient is abusive to others, insensitive to their feelings, and shows no remorse. The most likely personality disorder is

When a patient has an antisocial personality disorder, there is a lack of regard for rules, safety, and others. The patient will lie and act impulsively. A narcissistic personality disorder is demonstrated by airs of grandiosity and a constant need for admiration from others. A patient with a paranoid disorder show distrust and interprets others' actions as threatening. A histrionic disorder includes excessive displays of emotions and attention-seeking behavior.