disconfirmation

dis- +‎ confirmation

disconfirmation (countable and uncountable, plural disconfirmations)

1. (chiefly philosophy, uncountable) Introduction of evidence which conclusively establishes that a belief or hypothesis is not true or which diminishes the acceptability of a belief or hypothesis.
   • 1990, Donald P. Spence, “Theories of the Mind: Science or Literature?”, in Poetics Today, volume 11, number 2, page 331:

     Once we move our search to the region of the mind, we find that access to the facts becomes much more difficult; as a result, disconfirmation is largely out of reach and metaphor begins to flourish.

2. (countable) A particular fact, observation, or other item of evidence which shows or tends to show that a belief or hypothesis is not true.
   • 1981, Daniel M. Hausman, “John Stuart Mill's Philosophy of Economics”, in Philosophy of Science, volume 48, number 3, page 366:

     One can reduce the disconfirmations of economic generalizations by specifying a margin of error.

• infirmation

• disconfirm