Exorbitant.
Extreme; wild; excessive; unrestrained.
Profuse in expenditure; prodigal; wasteful.
Exceeding the bounds of something; roving; hence, foreign.
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.