disastrous
adj. 灾难性的，使损失惨重的；极失败的，很糟的
例句
The decision was disastrous in political terms.
从政治上来看，这个决定是灾难性的。
《牛津词典》
If word got out now, a scandal could be disastrous.
如果现在泄露消息，丑闻可能会是灾难性的。
《柯林斯英汉双解大词典》
He believed that the policies were both wrong and electorally disastrous.
他认为这些政策既是错误的、又是选举上的灾难。
