indefeasible

adjective in·de·fea·si·ble \-ˈfē-zə-bəl\

Definition of INDEFEASIBLE

: not capable of being annulled or voided or undone <an indefeasible right>

— in·de·fea·si·bil·i·ty \-ˌfē-zə-ˈbi-lə-tē\ noun

— in·de·fea·si·bly \-ˈfē-zə-blē\ adverb

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