Answer: COLOSSAL

AnswerCrossword Clue
COLOSSALOf great size.
colossal(of a giant order) Having more than one story of columns
colossalgigantic (huge (very large))
colossal(of a statue) At least twice life size
colossalExtremely large
COLOSSALMammoth
COLOSSALHumongous
COLOSSALProdigious
COLOSSALLike the Empire State Building
COLOSSALVast
COLOSSALBrobdingnagian
COLOSSALOne of the Hollywood adjectives.
COLOSSALEnormous
COLOSSALTruly immense
COLOSSALGargantuan
COLOSSALBeyond big
COLOSSALReally huge
COLOSSALGinormous
COLOSSALHuge
COLOSSALStupendous