01 a. Not to be defeated; not defeasible; incapable of being annulled or made void; as, an indefeasible or title.
-
1.
Not to be defeated; not defeasible; incapable of being annulled or made void; as, an indefeasible or title.“That the king had a divine and an indefeasible right to the regal power.” — Macaulay.