Fallible, a.
Etymology: [LL. fallibilis, fr. L. fallere to deceive: cf. F. faillible. See Fail.]
Liable to fail, mistake, or err; liable to deceive or to be deceived; as, all men are fallible; our opinions and hopes are fallible.
Shades of meaning
Fernald lists fallible only as an antonym, under perfect.
He lists it without comment; the entries above explain its neighbors.
Synonyms
none given