unreliable
- adj. 不可靠的；靠不住的
考试真题
- Unfortunately, part of the explanation is that the Census retail data are unreliable.
2019年6月六级真题（第一套）阅读 Section B
- In a recent speech in Lowa, he dismissed wind power as an unreliable energy source.
2018年考研真题（英语二）阅读理解 Section Ⅱ
- In contrast, only five of the 30 children paired with the "unreliable" tester participated in a follow-up activity.
2018年考研真题（英语一）完形填空 Section Ⅰ
- The process is cumbersome, expensive, and unreliable.
2019年考研真题（英语二）阅读理解 Section Ⅱ