unhoardingadj.
Etymology: Previous versions of the OED give the stress as: unˈhoarding.
the mind > possession > relinquishing > [adjective] > not hoarding
1695 J. Locke 54 They would still be..greater losers than their unhoarding Neighbours.
This entry has not yet been fully updated (first published 1924; most recently modified version published online June 2019).