Pitifully sad, wretched, miserable; lonely, especially from feeling abandoned, deserted, forsaken.
Abandoned, deserted, left behind.
Unlikely to succeed; hopeless.
A forlorn hope.
A member of a forlorn hope.
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.