INFALLIBIL'ITY INFAL'LIBLE, adjective [Latin fallo.] 1. Not fallible; not capable of erring; entirely exempt from liability to mistake; applied to persons. No man is infallible; to be infallible is the prerogative of God only. 2. Not liable to fail, or to deceive confidence; certain; as infallible evidence; infallible success. To whom he showed himself alive after his passion, by many infallible proofs--
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI