DictionaryfalsifyProving false
verb

falsify

To show that a claim or theory is false.

One contrary observation could falsify the hypothesis.

Etymology

The source verb meant to make false. English also developed the sense of proving false, so falsifying a theory can mean refuting it rather than dishonestly altering it.

More examples

  • The experiment was designed to falsify the prediction.
  • These findings falsified the claim that the effect was universal.
  • A theory must expose itself to evidence that could falsify it.

Forms

falsify · falsifies · falsified · falsifying

falsifiable adjective — capable of being disproved by evidence

Similar words

refute
Refute disproves a claim; falsify often concerns testing scientific hypotheses against contrary evidence.
verify
Verify seeks or establishes support; falsify establishes a failure of a claim.