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Noun: invalidation  in,va-lu'dey-shun
  1. (law) a formal termination (of a relationship or a judicial proceeding etc)
    - annulment
  2. When a person's thoughts and feelings are rejected, ignored, or judged.
    "Invalidation is emotionally upsetting for anyone, but particularly hurtful for someone who is emotionally sensitive."

Derived forms: invalidations

Type of: breakup, cognitive operation, cognitive process, dissolution, mental process, operation, process