disastrous

adj : (of events) having extremely unfortunate or dire

consequences; bringing ruin; "the stock market crashed

on Black Friday"; "a calamitous defeat"; "the battle

was a disastrous end to a disastrous campaign"; "such

doctrines, if true, would be absolutely fatal to my

theory"- Charles Darwin; "it is fatal to enter any war

without the will to win it"- Douglas MacArthur; "a

fateful error" [syn: {black}, {calamitous}, {fatal}, {fateful}]