not as bad, tall, etc. as all that

not as (something) as all that

To not have as much of some characteristic or attribute as others have suggested or believe. The movie wasn't as bad as all that—it was just a fun little popcorn flick. The houses in this neighborhood aren't as glamorous as all that. They're pretty overpriced for what you get, if you ask me.
See also: all, not, that

not as bad(ly), tall, etc. as all ˈthat

not as much as has been suggested: They’re not as rich as all that.
See also: all, not, that