unbelievable

adj.

不可相信的；站不住脚的；（由于太好或太糟而）令人难以置信的；非常惊人的

1. They work with an unbelievable speed.
   他们以令人难以置信的速度工作。
2. His ecstasy to the pop music is unbelievable.
   他对流行音乐的入迷是令人难以置信的。

Unbelievable results spark a controversy.
Unbelieving the Unbelievable
Unbelievable Security Matching AES Security Using Public Key Systems
Unbelievable Security. Matching AES Security Using Public Key Systems
VARAN the Unbelievable: An Efficient N-version Execution Framework
Unbelievable but improved cookstoves are not helpful in reducing firewood demand in Nepal.
SUPERSENSE: WHY WE BELIEVE IN THE UNBELIEVABLE by Bruce M. Hood
Unbelieving the unbelievable: Some problems in the rejection of false information.
'An Unbelievable Academic and Personal Experience': Issues around teaching undergraduate field courses in Africa
The clinical trial: deceitful, disputable, unbelievable, unhelpful, and shameful--what next?