in·fal·li·ble 
/ɪnˈfæləbəl/ adjective
/ɪnˈfæləbəl/ adjective 1 : not capable of being wrong or making mistakes : not fallible
▪ I never claimed to be infallible. ▪ an infallible memory 2 : certain to work properly or succeed
▪ There is no infallible remedy to these problems.
▪ I never claimed to be infallible. ▪ an infallible memory
▪ There is no infallible remedy to these problems.
— in·fal·li·bil·i·ty /ɪnˌfæləˈbɪləti/ noun [noncount]
▪ I never made any claims of infallibility. — see also papal infallibility
/ɪnˌfæləˈbɪləti/ noun [noncount] ▪ I never made any claims of infallibility. — see also papal infallibility
— in·fal·li·bly /ɪnˈfæləbli/ adverb
▪ The computer program can infallibly identify each type of file.
/ɪnˈfæləbli/ adverb ▪ The computer program can infallibly identify each type of file.
