a realistic
A realist believes in facts, not fake stuff. They might be an atheist or an agnostic because they don’t believe in magic or imaginary friends.
My friend is a realist. He doesn’t believe in magic. He just believes in facts.
My cousin is a realist. She doesn’t believe in imaginary friends. She just believes in facts.
My brother is a realist. He doesn’t believe in magic. He just believes in facts.