Suggesting the horror of death; macabre or ghoulish.
Of, or relating to disease.
Grisly or gruesome.
Taking an interest in, or fixating on, unhealthy or unwholesome subjects such as death, decay, disease.
Pertaining to suicide.
Likely to commit, or to attempt to commit, suicide.
Extremely reckless.
Highly likely to certain to result in the deaths of the participants; dangerous or reckless to such a degree as to be tantamount to suicide for those taking part.
Someone suicidal; someone likely to kill themselves.