2 adjectives to describe morbidness

" It was hard for Mr. Allen to be severe with Mercy, for he loved her as if she were his younger sister; but he honestly thought her to be in great danger of falling into a chronic morbidness on this subject, and he believed that stern words were most likely to convince her of her mistake.

But that, on our part, was mere morbidness born of the sights we saw.

2 adjectives to describe  morbidness