INDEFEASIBLE In`de*fea`si*ble, a. Etym: [Pref. in- not + defeasible: cf. OF. indefaisable.]

Defn: 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.

INDEFECTIBILITY
In`de*fect`i*bil"i*ty, n. Etym: [Cf. F. indéfectibilité.]

Defn: The quality of being indefectible. Barrow.

INDEFECTIBLE In`de*fect"i*ble, a. Etym: [Pref. in- not + defectible: cf. F. indéfectible.]

Defn: Not defectible; unfailing; not liable to defect, failure, or
decay.
An indefectible treasure in the heavens. Barrow.
A state of indefectible virtue and happiness. S. Clarke.

INDEFECTIVE
In`de*fect"ive, a.

Defn: Not defective; perfect; complete. "Absolute, indefective obedience." South.

INDEFEISIBLE
In`de*fei"si*ble, a.

Defn: Indefeasible. [Obs.]