contrariness
/ˌkɒntəˈrærɪnəs/Definitions
1. noun
The quality of being contrary; a tendency to resist or oppose others, often in a stubborn or unreasonable way.
“Her contrariness was causing friction within the team and affecting their productivity.”
2. noun
A stubborn or uncooperative attitude or behavior.
“The child’s contrariness made it difficult for her parents to get her to eat her vegetables.”