1. A conviction or acceptance of something as true when it is actually untrue or unfounded
The false belief that the Earth is flat has been debunked by science.
A crença falsa de que a Terra é plana foi refutada pela ciência.
2. In psychology, a mistaken assumption or misconception held by a person
She had a false belief about the side effects of the medication.
Ela tinha uma crença falsa sobre os efeitos colaterais do medicamento.
3. In philosophy/cognitive science, a propositional attitude that does not correspond to reality
The study examined how false beliefs develop in children.
O estudo examinou como crenças falsas se desenvolvem em crianças.