Found 2 items, similar to indefeasible.
English → English (WordNet) Definition: indefeasible indefeasible adj : not liable to being annulled or voided or undone; “an indefeasible right to freedom”; “an indefeasible claim to the title” [ant: defeasible]
English → English (gcide) Definition: Indefeasible Indefeasible \In`de*fea`si*ble\, a. [Pref. in- not + defeasible: cf. OF. indefaisable.] Not to be defeated; not defeasible; incapable of being annulled or made void; as, an indefeasible or title. [1913 Webster] That the king had a divine and an indefeasible right to the regal power. --Macaulay. [1913 Webster]