One who does not believe in a certain principle.
One who does not believe in a certain religion.
One with no religious beliefs.
Rejecting a specific religion.
Of, characteristic of, or relating to unbelievers or unbelief.
A person who believes in or advocates the tenets of philosophical or methodological naturalism.
A creative artist who attempts to faithfully represent nature; an adherent of artistic naturalism.
An expert in natural history or the study of plants and animals.