invalidation
US /ɪnˌvæl.əˈdeɪ.ʃən/
UK /ɪnˌvæl.əˈdeɪ.ʃən/
1.
the act of making something not valid or acceptable
:
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The court's invalidation of the contract caused significant financial losses.
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The invalidation of the previous test results required a new round of experiments.
2.
the act of denying or dismissing someone's feelings, experiences, or opinions, making them feel unheard or unimportant
:
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Her constant invalidation of his feelings led to a breakdown in their communication.
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Therapists often work to counteract the effects of emotional invalidation.