disconfirm

verb

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

   “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.”

   “As a result, if facts disconfirm the officially sanctioned theoretical vision, they are subordinated.”