infallible

== English == === Etymology === From Medieval Latin infallibilis, from Latin in- + fallibilis. Compare French infaillible. By surface analysis, in- +‎ fallible. === Pronunciation === IPA(key): /ɪnˈfæl.ɪ.bl̩/ === Noun === infallible (plural infallibles) A person who, or an object or process that, is taken as being infallible. === Adjective === infallible (comparative more infallible, superlative most infallible) Without fault or weakness; incapable of error or fallacy. Certain to produce the intended effect; sure. ==== Synonyms ==== faultless perfect indefective inerrant ==== Antonyms ==== fallible defective faultful faulty imperfect error-prone ==== Derived terms ==== ==== Related terms ==== infallibility infallibly ==== Translations ====