(adj)(of events) having extremely unfortunate or dire consequences; bringing ruin; ; ; ; - Charles Darwin; - Douglas MacArthur, Syn.disastrous, calamitous, fateful, fatal
The Collaborative International Dictionary of English (GCIDE) v.0.53Collaborative International Dictionary (GCIDE)
Ten thousands of calamitous persons. South. [ 1913 Webster ]
2. Producing, or attended with distress and misery; making wretched; wretched; unhappy. “This sad and calamitous condition.” South. “A calamitous prison” Milton.