unadverse
/ˌyuːnˈædvɜːrs/Definitions
1. adjective
not adverse or opposed; not opposed to a proposal, plan, etc.
“The committee member was unadverse to the new policy, but wanted to suggest some changes.”
2. noun
a person or thing that is not adverse or opposed to something
“The company’s unadverses in the market were a major factor in its success.”