nonevent
n. 大肆宣扬即将来临而结果未发生之事；被期望但未实现的事
例句
Unfortunately, the entire evening was a total nonevent.
很遗憾，整个晚上完全让人大失所望。
《柯林斯英汉双解大词典》
The problem is how to dramatize a nonevent.
如何描述一个并未发生的事件实为困难。
It's a nonevent for stock markets to swing 15% peak-to-trough every year.
对于股票市场来说，每年峰谷波动15%也不足为奇。
