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Asymmetrical
If you mean horizontally asymmetrical there are 15: BCDEFGJKLNPQRSZ
If you mean vertically asymmetrical there are 17: AFGJLMNPQRSTUVWYZ
Now it is considered by most scientists that the universe is asymmetrical.
Yes, a molecule of H2O is symmetrical.
An asymmetrical fold is a fold where on limb deeps steeper than the other