disconfirms

Verb

disconfirm (third-person singular simple present disconfirms, present participle disconfirming, simple past and past participle disconfirmed)

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.1943, Carl G. Hempel, “A Purely Syntactical Definition of Confirmation”, in The Journal of Symbolic Logic, volume 8, number 4, page 122

   Synonyms:

   infirm