Antonyms of adj disastrous

1 sense of disastrous

Sense 1
black, calamitous, disastrous, fatal, fateful -- ((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")

INDIRECT (VIA unfortunate) -> fortunate -- (having unexpected good fortune; "other, less fortunate, children died"; "a fortunate choice")

Similarity of adj disastrous

1 sense of disastrous

Sense 1
black, calamitous, disastrous, fatal, fateful -- ((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")
       => unfortunate (vs. fortunate) -- (not favored by fortune; marked or accompanied by or resulting in ill fortune; "an unfortunate turn of events"; "an unfortunate decision"; "unfortunate investments"; "an unfortunate night for all concerned")