a) Of or pertaining to a catastrophe.
The reason why Jon & Kate Plus 8 is such a hot topic is because it might all be a sham. It’s been claimed that Jon has a string of mistresses, that Kate had an affair with her bodyguard and that Baby Number Six is actually a shaved Ewok with a catastrophic heroin addiction. Or something.
b) Disastrous; ruinous.
Wikipedia foundation.