noun.
The state or quality of being impetuous; making arbitrary decisions.
noun.
Result of being impetuous; arbitrary decisions.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
rash impulsiveness
Word Usage
"I got her youthful impetuousness, which is classic Lois Lane, and at the same time a motherly sense, a protective sense regarding her child, who plays a significant role in the picture."