amicable
adjective
uk/ˈæmɪkəbl/ uspleasant and friendly, often despite a difficult situation:
His manner was perfectly amicable but I felt uncomfortable.
an amicable debate
an amicable agreement is achieved without arguments or anger:
an amicable agreement/settlement/solution Eventually we reached an amicable settlement.
amicably
adverb
I hope we can settle this amicably.