invalidate

verb3

1. •
   To make invalid (especially in to contract law)

   • The circuit court judge's ruling was invalidated by a superior judge.
2. •
   To make or declare (an argument, statement, or theory) unsound or erroneous; disprove.

   • The multiplicity of moral opinions is an empirical fact and does not invalidate the contention that there is only one morality par excellence. — 1978
3. •
   To render invalid; discredit.

   • Telling an angry person to "calm down" can invalidate their feelings.