catastrophic
/ˌkætəˈstrɑfɪk/
extremely harmful; bringing physical or financial ruin
中文释义：灾难性的；毁灭性的
The hurricane caused catastrophic damage to coastal communities.
飓风对沿海社区造成了灾难性的破坏。
A catastrophic failure of the dam led to widespread flooding.
大坝的灾难性溃决导致了广泛的洪水。