1 : relating to unpleasant subjects (such as death)
She has a morbid interest in funerals.
He has a morbid sense of humor.
a morbid fascination with death
wanting to learn about a celebrity's downfall out of morbid curiosity
2 technical : not healthy or normal
suffering from a morbid condition
The child has a morbid fear/horror of snakes.
— morbidly adverb
She was morbidly fascinated with death.