Pain or not, I would most likely walk around in a suicidal...

Pain or not, I would most likely walk around in a suicidal reverie the rest of my life, never actually doing anything about it. Was there a psychological term for that? Was there a disease that involved an intense desire to die, but no will to go through with it? Couldn't talk and thoughts of suicide be considered a whole malady of their own, a special subcategory of depression in which the loss of a will to live has not quite been displaced by a determination to die?