falsificationism
Philosophical doctrine, associated with Karl Popper, that scientific theories can only be tested by attempting to falsify them, not by verifying them. Related to 反証可能性 (falsifiability).
See also: 反証可能性
Falsificationism is considered one of the criteria for distinguishing science from pseudoscience.
According to Popper's falsificationism, a theory without falsifiability cannot be called scientific.