We found 7 dictionaries that define the word invalidations:

General (5 matching dictionaries)

1. invalidations: Merriam-Webster
2. invalidations: Collins English Dictionary
3. invalidations: Vocabulary.com
4. invalidations: Wiktionary
5. invalidations: TheFreeDictionary.com

Business (2 matching dictionaries)

6. invalidations: Merriam-Webster Legal Dictionary
7. invalidations: Legal dictionary

(Note: See invalidation as well.)

Definitions from Wiktionary (invalidation) ▸ noun:  The act of invalidating, or the state of being invalidated ▸ Also see invalidation Opposite: validations, confirmations, affirmations ▸ Words similar to invalidations ▸ Usage examples for invalidations ▸ Idioms related to invalidations ▸ Wikipedia articles (New!) ▸ Popular adjectives describing invalidations ▸ Words that often appear near invalidations ▸ Rhymes of invalidations ▸ Invented words related to invalidations