犹豫，可疑（dubious 的名词形式）
the state of being unsure of something
同义词： doubt / uncertainty / incertitude / dubiety / doubtfulness
uncertainty about the truth or factuality of existence of something
the dubiousness of his claim
同义词： doubt / doubtfulness / question
... dubiously = 半信半疑 dubiousness = 犹豫 dubitable = 可疑 ...
暗昧
"I really fear sometimes that you cannot," he said, with a dubiousness approaching anger.
“我的确有时候挺害怕你不爱我。”他说，那疑心近乎生气。
The transformation of the parliament's function brings the dubiousness of publicity as the organizational principle of the state order into full view.
议会功能的转变，将作为国家程序组织原则的公共性的疑点都显露出来了。
Yet drama and dubiousness is in fact a regular part of the list work.
FORBES: Wealth, Bribes and Lies: Ten Years Of Tracking China's Richest
The other is the dubiousness of the ways that students are attracted to particular colleges in the first place.
Aside from the dubiousness of that conclusion I suspect that most Edwards supporters would have gone to Obama before voting for Clinton the thought of the Clinton camp calling on the media to expose the sexual shenanigans of a candidate defies belief.