Pertaining to the worst-case scenario.
Marked by pessimism and little hopefulness; expecting the worst.
Taking out exclusive locks on data to prevent conflicts with other processes that might modify it.
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.
Pertaining to suicide.
Someone suicidal; someone likely to kill themselves.