feeble-mindedness

David's feeble-mindedness was probably only one of the awful results.

The man who started this terrible line of immorality and feeble-mindedness later married a normal Quaker girl.

Physical inhibition in the growth of the brain involves, on the mental side, feeble-mindedness and idiocy.

Feeble-mindedness acts in heredity as does the white corn in the example given above.

Of all the calamities that can befall a human being, feeble-mindedness is, perhaps, the worst.