Sociopath (noun)

A person who lacks empathy and has a disregard for the rights and feelings of others, often resulting in antisocial behavior.

Origin:

Derived from the greek words 'sócios' meaning 'companion' and 'pathos' meaning 'suffering', the term 'sociopath' was first used in the early 20th century to describe a person who lacks empathy and has a disregard for the rights and feelings of others.

Examples:

1. The serial killer was considered a sociopath due to his lack of remorse for the lives he had taken.
2. The main character in the film was diagnosed as a sociopath after a series of violent and manipulative actions.
3. Many experts believe that sociopathy is a result of a combination of genetic and environmental factors.
4. The sociopath's ability to charm and manipulate others allowed him to get away with his crimes for years.
5. The sociopath showed no emotion as he was sentenced to life in prison for his crimes.