a realistic
Realists know the truth and don’t let lies or fake news trick them. They see through bullcrap and don’t let anyone tell them what to think.
My dad is a realist. He saw through the fake news and didn’t vote for the guy who promised the moon.
My friend is a realist. She didn’t believe the hype about the new phone. It was just a fancy toy.
My brother is a realist. He knew the teacher was lying about the test. He just took it anyway.