invalidation
nounUK /ɪnˌvælɪˈdeɪʃən/
US /ɪnˌvælɪˈdeɪʃən/
The act of making something no longer count or be accepted.
The invalidation of the test results meant everyone had to take the exam again.
RELATED WORDS
OTHER MEANINGS
2. The feeling that your thoughts or feelings are being dismissed as wrong.
She felt hurt by the invalidation of her concerns during the meeting.
3. The process of proving that a ticket, document, or claim is not valid.
The invalidation of the old passport happened when the new one was issued.
4. In computing, the act of marking stored data as no longer usable.
Cache invalidation helps the app show the most up-to-date information.