INDEFECTIBLE

indefectible. Indefectible, a. not subject to defect or decay

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In′de‐fect″i‐ble (?), a. [[Pref. in- not + defectible: cf. F. indéfectible.]] 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.