impetuousness

n.

冲动；急躁；

1. His level-headedness counter-balances her impetuousness.
   他头脑冷静，这可抵销一些她的急躁情绪。

Operative management of children's fractures: is it a sign of impetuousness or do the children really benefit?
The Responsibilities of Academic Journals in the Face of Academic Impetuousness
Neo-descriptism":A boundary-tablet to Impetuousness
THE EUROPEAN UNION CULTURE IN THE SOCIAL AMBIT
Three Generations, One Oilfield