changeability
US /ˌtʃeɪndʒəˈbɪləti/
UK /ˌtʃeɪndʒəˈbɪləti/

1.
多变性, 可变性, 不稳定性
the quality of being subject to change or alteration
:
•
The changeability of the weather made planning difficult.
天气的多变性使计划变得困难。
•
Her mood's changeability was hard to predict.
她情绪的多变性很难预测。