adj, verb ·3 syllables ·Rare ·Advanced level

Definitions

Verb

1. 1
   simple past and past participle of grandfather form-of, participle, past

Adjective

1. 1
   Of a policy, document, or other legality, that has retained discontinued laws or rules or that has been exempted from new regulation.

Synonyms

All synonyms

grandpagrampsgrandadgranddadgranddaddygrandpa

Example

More examples

"Tom and Mary are grandfathered in at a lower rent for their apartment."

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.