Nihilist
Usually, a doubting Thomas, (Biblical)
A pandeist is a person who believes in a blend of pantheism and deism, or a person who believes in the truth of all religions.
In general, such persons could be called believers.
Sick all the time
MATERIALISTIC
They are called an Anarchist.
Muslims believe that they are the be-all and end-all and that everybody who believes differently is worthy of nothing but death.
Nothing would happen. l don't think anyone believes in greek gods anymore.
A person who believes in science is often referred to as a scientist or a rationalist.
if you can take advantages from a person and he believes all the things which you tell to them called a naive person. we can say he is innocent....
A person who believes that war is wrong is called a "pacifist".
The psychological opposite to paranoia is pronoia.