IPA: /ˈiːvənˌhændədnəs/
KK: /ˈivənˌhandədnəs/
The quality of treating all people or groups fairly and equally without favoritism or bias.
The manager's evenhandedness in dealing with employees earned her their respect.
Evenhandedness → It is formed from "even" (from Old English *efen*, meaning level or equal), "hand" (from Old English *hand*, meaning the part of the body used for grasping), and "-edness" (a suffix indicating a state or quality). The word describes the quality of being fair and impartial, as if one is using both hands equally.
Think of being 'level' ('even') and using both 'hands' equally to treat everyone fairly — that's what evenhandedness means.