in·de·fec·ti·ble /-ˈfɛktəbəl/
(a.)不敗的,不易壞的,無瑕的
In·de·fect·i·ble a. 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.
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