Morbid (adjective)

Having an abnormal interest in death or disease; macabre.

Origin:

From latin morbidus "sickly", from morbus "disease".

Examples:

1. The movie had a morbid plot that dealt with death and violence.
2. He had a morbid fascination with serial killers.
3. The story had a morbid ending that left a bad taste in the audience's mouth.
4. The painting was morbid, depicting death and decay.
5. The conversation was morbid, focusing on death and illness.