Kook and Sociopath

Kook noun - A person of odd or whimsical habits.

Sociopath and kook are semantically related. In some cases you can use "Sociopath" instead a noun "Kook".

Sociopath 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personality; a person with an antisocial personality disorder (`psychopath' was once widely used but has now been superseded by `sociopath').

Kook and sociopath are semantically related. Sometimes you can use "Kook" instead a noun "Sociopath".