Disconfirm

verb

Definitions

Verb
  1. 1
    To establish the falsity of a claim or belief; to show or to tend to show that a theory or hypothesis is not valid. transitive

    "The empirical data obtained in a test—or, as we shall prefer to say, the observation sentences describing those data—may then either confirm or disconfirm the given hypothesis, or they may be neutral with respect to it."

Etymology

From dis- + confirm.

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