Looney and Sociopath

Looney noun - Someone deranged and possibly dangerous.

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

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personality; a person with an antisocial personality disorder (`psychopath' was once widely used but has now been superseded by `sociopath').

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