Pronunciation: /ɪnˌvælɪˈdeɪʃən/
noun a noun is a word that represents a person, place, thing, or idea. In this case, 'invalidation' is a noun that refers to the act of making something invalid or void.
A1 Invalidation of my feelings made me sad.
A2 Her constant invalidation of his ideas led to tension in their relationship.
B1 The invalidation of her passport caused delays in her travel plans.
B2 The court ruled that the contract was invalid due to the invalidation of a key clause.
C1 The invalidation of the scientific study raised questions about its credibility.
C2 The lawyer argued for the invalidation of the evidence based on procedural errors.
formal The court ruled in favor of the plaintiff, citing the invalidation of the contract due to lack of proper signatures.
informal She felt a sense of invalidation when her ideas were dismissed by her colleagues.
slang I hate when people try to invalidate my feelings just because they don't agree with them.
figurative The constant invalidation from her parents made her feel like her emotions didn't matter.
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