Invalidating someone else is not merely disagreeing with something that the other person said. It is a process in which individuals communicate to another that the opinions and emotions of the target are invalid, irrational, selfish, uncaring, stupid, most likely insane, and wrong, wrong, wrong. Invalidators let it be known directly or indirectly that their targets views and feelings do not count for anything to anybody at any time or in any way.
invalidation is crazy-making, and it is also at the root of gaslighting, where victims' feelings are purposely denied or manipulated in order to make them question their sanity.
At times I am flabbergasted that my memory is considered false and my alcoholic father's memory is considered rational and sane. Am I not believed because I am a woman? If Peter Freyd were a man who lived in my neighborhood during my childhood instead of my father, would he and his wife be so believable? If not, what is it about his status as my father that makes him more credible?