Adjective (い)
Colloquialism
1. terrible; dreadful
部屋がすっごいことになってる。The room is in a terrible state.
2. amazing (e.g. of strength); great (e.g. of skills); wonderful; terrific
3. to a great extent; vast (in numbers)
すっごい荷物ですねー！That's a huge amount of luggage!