[adjective]In the centre of the hall stood a colossal (= very large) wooden statue, decorated in ivory and gold.(informal) Colossal can also be used to describe things which are extremely large or great.They were asking a colossal amount of money for the house.I think she's got colossal cheek (= she is very rude) to suggest such a thing.
COLOSSAL
Meaning of COLOSSAL in English
Cambridge English vocab. Кембриджский английский словарь. 2012