s (of events) having extremely unfortunate or dire consequences; bringing ruin
a. 损失惨重的, 悲伤的
1. The storm caused disastrous damage to the town.
这场暴风雨给小镇造成了灾难性的损失。
2. His disastrous decision led to a lot of problems.
他那个灾难性的决定导致了许多问题。
3. The company's disastrous performance this year surprised everyone.
公司的这年灾难性的表现让大家感到惊讶。