uninimical
/ˌʌnɪˈnɪmɪkəl/Definitions
1. adjective
unwilling to agree or cooperate, especially in a way that is seen as hostile or uncooperative
“The government’s uninimical stance towards foreign aid has hindered international relations.”
2. noun
a person who is unwilling to agree or cooperate
“The company’s uninimical members caused a significant delay in the project.”