indefeasable

Is it not strange that the Law which will not permit an individual to bequeath his property to the descendants of his own loins for more than a short and strictly defined term, should authorize an associated few, to entail perpetual and indefeasable appropriations; and that, not only to objects visible and tangible, but to particular opinions, consisting, sometimes, of the most metaphysical niceties; as is the case with Ecclesiastical Corporations.

The Volokh Conspiracy » What’s Missing from This New York Times Editorial? 2009

It is clear that Adam lost his first estate de usis et fructibus in the Garden of Eden, simply because there was no notary to draw up for him an indefeasable lease.

The Golden Dog William Kirby 1861

They were not reformists, but Irish separatists who articulated the basic republican message that our sovereignty is inalienable and indefeasable.

Politics.ie - 3,4,5,6,7,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,27,28,29,30,32,33,34,35,36,37,38,39,41,42,48,49,50,52 2009