inquisitiveness 

英汉解释

n. 好奇；爱打听别人隐私

同义词

n. curiousness

参考例句

1. It especially excited their inquisitiveness.
这尤其引起了他们的好奇心。
2. This attitude combines a lack of class consciousness, a somewhat jaunty optimism and an inquisitiveness.
这种态度包括等级观念不强，得意洋洋的乐观劲儿和刨根问底的好奇心。
3. Veteran: And at last, please remember the meaning of "Flagyellow". That's "study, innovation, inquisitiveness".
最后呢，请记住“国旗黄”的含义：“学习，创新，求知欲”。

英英解释

n.
  1. a state of active curiosity

网络释义

inquisitiveness
求知欲; 好奇; 询问性; 好问;