Definition of Brobdingnagian

Adjective: Brobdingnagian  ,brób-dig'na-gee-un or ,brób-ding'na-gee-un

1. Huge; relating to or characteristic of the imaginary country of Brobdingnag
    
2. Unusually great in size or amount or degree or especially extent or scope
   "Brobdingnagian government spending";
   - huge, immense, vast

See also:
Brobdingnag
Broca