Can I say "less bigger" or "more weaker" and similar phrases?

Question

Suppose that

1. A is bigger than B
2. B is bigger than C

Now, is it fine if I say,

Compared to A, B is less bigger than C?

If so, in this context, can I remove the first part in the almost formal settings like an academic writing?

B is less bigger than C?

Answer 1

No, you may not modify a comparative adjective in this way.

However, in mathematics, we write C < B < A, which could be read in a number of ways:

1. C is smaller than B, which is smaller than A.

2. A is larger than B, which is larger than C.

3. B lies between A and C.

Depending on the context, any of these could work.

Hope this helps!