Objectophobia
When you're too scared to say the truth because it's gonna make you look like a fool and everyone will laugh at you like you're the butt of a joke.
'I don't care if the math checks out, I'm not gonna admit it because I'm too proud.'
'The Earth is round? Pfft, I'm not buying it, I'd rather believe in magic.'
'You can't prove it, so I'm gonna pretend it's not real.'