indefeasible
adjective
not defeasible; not to be annulled or made void; not forfeitable.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Certainly its quality as a strictly personal and private sort of property is intensified by the very indefeasibleness with which it is attached to the individual.
From Equality by Edward Bellamy