Wiktionary
as anything
adv. To a great extent or degree; very.
Usage examples of "as anything".
You know my father, he never has anything except frozen string beans and TV dinners.
We'd gone back and forth a lot about whether or not there really was anything in there.
The crack looked like a zigzag S or a lightning-bolt, and there didn't seem like there was anything much in it to see, just a thickness of rock at least two feet, maybe three.