doubtfulness

1. All doubtfulness vanish after the testimony of the key witness.
   主要目击者提供证词后所有的疑问都消失了。
2. All doubtfulness vanished after the testimony of the key witnesses.
   在关键证人的证词之后，所有的疑点都消失了。
3. Science and technology editor must be follow three principles for falsification: daring doubtfulness, contradiction discrimination, and reaching the truth through falsification.
   科技编辑证伪必须遵循3条原则：大胆怀疑；发现矛盾；
4. The factors influencing psychological health showed a certain differences on doubtfulness, nervousness, adaptability and anxiousness.
   心理健康影响因素只在怀疑性、紧张性、适应与焦虑型上存在一定的显著差异；

noun

1. uncertainty about the truth or factuality or existence of something
   1. the dubiousness of his claim
   2. there is no question about the validity of the enterprise

   Synonym:    doubtdubiousnessquestion

2. the state of being unsure of something

   Synonym:    doubtuncertaintyincertitudedubietydubiousness