1. 
2. 
[syn: huge, immense, vast, Brobdingnagian]
The Collaborative International Dictionary of English v.0.48:
Brobdingnagian \Brob`ding*nag"i*an\, a. [From Brobdingnag, a
   country of giants in "Gulliver's Travels."]
   Colossal; of extraordinary height; gigantic. -- n. A giant.
   [Spelt often Brobdignagian.]
   [1913 Webster]
WordNet (r) 3.0 (2006):
Brobdingnagian
    adj 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; "huge government spending"; "huge country
       estates"; "huge popular demand for higher education"; "a huge
       wave"; "the Los Angeles aqueduct winds like an immense snake
       along the base of the mountains"; "immense numbers of birds";
       "at vast (or immense) expense"; "the vast reaches of outer
       space"; "the vast accumulation of knowledge...which we call
       civilization"- W.R.Inge [syn: huge, immense, vast,
       Brobdingnagian]