We found 12 dictionaries that define the word grandfathered:

General (6 matching dictionaries)

1. grandfathered: Merriam-Webster
2. Grandfathered, grandfathered: Wordnik
3. grandfathered: Wiktionary
4. grandfathered: Dictionary.com
5. Grandfathered (TV series), Grandfathered: Wikipedia, the Free Encyclopedia
6. grandfathered: TheFreeDictionary.com

Business (3 matching dictionaries)

7. grandfathered: Merriam-Webster Legal Dictionary
8. grandfathered: Legal dictionary
9. grandfathered: Financial dictionary

Computing (1 matching dictionary)

10. grandfathered: Encyclopedia

Medicine (1 matching dictionary)

11. grandfathered: Medical dictionary

Miscellaneous (1 matching dictionary)

12. grandfathered: Idioms

(Note: See grandfather as well.)

Definitions from Wiktionary (grandfathered) ▸ adjective:  Of a policy, document, or other legality, that has retained discontinued laws or rules or that has been exempted from new regulation. Types: existing, pre-existing, legacy, more... Phrases: grandfathered activities, grandfathered in, more... ▸ Words similar to grandfathered ▸ Usage examples for grandfathered ▸ Idioms related to grandfathered ▸ Wikipedia articles (New!) ▸ Popular nouns described by grandfathered ▸ Words that often appear near grandfathered ▸ Rhymes of grandfathered ▸ Invented words related to grandfathered