Attended with suffering or disaster; very unfortunate; calamitous; ill-fated; ending in utter failure or ruin; as, a disastrous day; a disastrous termination of an undertaking.

(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"

Full of unpropitious stellar influences; unpropitious; ill-boding.