enormous

デカイ A young people’s word for huge.   KIDS$$$
 
(きょだい) Huge guy! Like a dinosaur or Gandam.
 
(じんだい) Gigantic – used about disasters. “The gigantic earthquake killed 1,000 dudes.”   NP
 
(ぼうだいな) Colossal, but not used about physical things. You’d talk about the colossal deficit or budget or a huge amount of data.