These jeans aren’t big enough for me.
These jeans are too small for me.
If I understand right, these sentences have the same meaning. But, in practise, it is used only the second version [NGram]. Could you explain why?
These jeans aren’t big enough for me.
These jeans are too small for me.
If I understand right, these sentences have the same meaning. But, in practise, it is used only the second version [NGram]. Could you explain why?
As observed, the problem really is in the Ngram. Removing jeans from the search, and comparing "are too small" to "aren't big enough" shows some use of the second option. And there are definitely idiomatic situations where only "not big enough" is the only appropriate choice, like "This town ain't big enough for the both of us."