/ɪndɪˌfiːzəˈbɪlɪti/ – Noun
Definition: Không thể hủy bỏ.
A more thorough explanation: (of a right, payment, or other benefit) the state of being incapable of being taken away, overturned, or made invalid in any way
Example: He successfully argued for the indefeasibility of Certificates of Land Ownership Awards.