The Correct spelling is: colossal
Common misspellings of the word colossal are:
How do you spell colossal?. It is not collosal
Of a size, extent, or degree that elicits awe or taxes belief; immense. See synonyms at enormous.
[French, from Latin colossus, colossus. See colossus.]colossally coÂ·los'salÂ·ly adv.