A juggernaut is a term used to describe a force regarded as unstoppable, that will crush all in its path. (see related questions) A juggernaut is a term used to describe a force regarded as unstoppable, that will crush all in its path. (see related questions)
Psychopathy is commonly defined as a personality disorder characterized partly by antisocial behavior, a diminished capacity for remorse, and poor behavioral controls. Psychopathic traits are assessed using various measurement tools, including Canadian researcher Robert D. Hare's Psychopathy Checklist, Revised (PCL-R).
sociopath, psychopath(noun) someone with a sociopathic personality; a person with an antisocial personality disorder (`psychopath' was once widely used but has now been superseded by `sociopath')