defeasible belief

A defeasible belief is a belief that can be overturned or revised when new evidence or reasons emerge. It’s not absolute or certain; instead, it depends on current information. For example, you might believe it’s going to rain based on dark clouds, but if the weather forecast then predicts sunny weather, you might revise that belief. Defeasible beliefs reflect the flexible, provisional nature of our understanding, allowing us to adjust our opinions as we learn more or circumstances change.