| Fallible (a.) Liable to fail, mistake, or err; liable to deceive or to be deceived; as, all men are fallible; our opinions and hopes are fallible. Thesaurus Entries adulterated, blemished, careless, damaged, defective, deficient, errable, errant, erroneous, error-prone, faulty, found wanting, heedless, immature, impaired, imperfect, imprecise, impure, inaccurate, inadequate, incomplete, inexact, lacking, liable to error, makeshift, mediocre, mixed, not perfect, off, open to error, partial, patchy, short, sketchy, undeveloped, uneven, unfinished, unperfected, unsound, unthorough, wanting |