unpredictability 

英汉解释

n. 不可预测性，不可预知性；不可预见性

同义词

n. capriciousness，volatility

反义词

n.   predictability

参考例句

1. In other words, the distribution of unpredictability is not uniform throughout systems.
换句话说，不可预测性在整个系统中的分布并不是统一的。
2. The model overcomes the unpredictability due to monotonicity and periodical fluctuation of freight volume.
该模型克服了货运量的单调性和周期波动性给预测带来的困难。
3. There is one part of the application, however, that adds an element of unpredictability to the whole process, and that is the personal statement.
这只是申请的一方面，然而个人陈述给整个无法预测的过程加入了一点确定元素。

英英解释

n.
  1. the quality of being guided by sudden unpredictable impulses
  2. the trait of being unpredictably irresolute
  3. lacking predictability

网络释义

Unpredictability
不可预见性; 不可预知性; 不可预测性; 不可预测性 不可预知性;
The Law of Unpredictability
不可预见法则;
Law of Unpredictability
市场中的不可预见法则;