disastrous
adjective
(of events) having extremely unfortunate or dire consequences; bringing ruin
“the stock market crashed on Black Friday”
“a calamitous defeat”
Source: WordNet 3.1, Princeton University
Disastrous meaning
What does “disastrous” mean? Definitions, examples, synonyms and opposites.
“disastrous” is an adjective with one meaning. Its most common meaning is: (of events) having extremely unfortunate or dire consequences; bringing ruin.