infallible

The definition of infallible is someone or something that is always perfect and right, without any errors or mistakes.

(adjective)

An example of infallible are the decisions of God.

See infallible in Webster's New World College Dictionary

adjective

incapable of error; never wrong
not liable to fail, go wrong, make a mistake, etc.; dependable; reliable; sure
R.C.Ch. incapable of error in setting forth doctrine on faith and morals: said esp. of the pope speaking ex cathedra (i.e., in his official capacity)

Origin: ML infallibilis: see in- & fallible

noun

an infallible person or thing

Related Forms:

See infallible in American Heritage Dictionary 4

adjective

Incapable of erring: an infallible guide; an infallible source of information.
Incapable of failing; certain: an infallible antidote; an infallible rule.
Roman Catholic Church Incapable of error in expounding doctrine on faith or morals.

Origin:

Origin: Middle English

Origin: , from Medieval Latin īnfallibilis

Origin: : Latin in-, not; see in-¹

Origin: + Medieval Latin fallibilis, fallible; see fallible

Related Forms: