- 1. a. Infallible. Source: opted
- 2. word/infallible">Infallible. [Obs.] "This unfailable word of truth." Bp. Hall. Source: webster
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unfailable
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unfailingunfailinglyunfairunfairestunfairlyunfairnessunfairnessesunfaithunfaithfulunfaithfullyunfaithfulness
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