Exceedingly violent, severe, ferocious, cruel or savage.
Excellent, very good.
Resolute or strenuously active.
Of exceptional quality, exhibiting boldness or chutzpah.
Threatening in appearance or demeanor.
Extremely; very.
Extremely reckless.
Likely to commit, or to attempt to commit, suicide.
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.