We've found 4 phrases for disastrous (0.116 seconds):

blow up »    To fail disastrously.

blow up in one's face »    To fail disastrously.

come to grief »    To have a disastrous outcome.

hot mess »    Refers to a person, thing, or situation in such a state of disarray or disapproval by peers, often in reference to physical appearance, perceived to be disastrously embarrassing, pitiful, or beyond repair.

BTW, Why won't you become an editor?