Logically capable of being proven false.(adjective)
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Use "falsifiable" in a sentence
"That ID may or may not be falsifiable is not as much of a concern to me as finding helpful conceptual tools."
"All scientific assertions, proven or unproven, must be falsifiable, that is, indicate a possible set of observable facts that disprove them."
"These ideas are neither testable nor falsifiable, which is why their proponents avoid peer review in respected scientific journals and take their pitch directly to the public through popular books and a well-financed PR machine."