infallible

in·fal·li·ble

adj \(ˌ)in-ˈfa-lə-bəl\

Definition of INFALLIBLE

1

: incapable of error : unerring <an infallible memory>

2

: not liable to mislead, deceive, or disappoint : certain <an infallible remedy>

3

: incapable of error in defining doctrines touching faith or morals

— in·fal·li·bil·i·ty \-ˌfa-lə-ˈbi-lə-tē\ noun

— in·fal·li·bly \-ˈfa-lə-blē\ adverb

Examples of INFALLIBLE

1. I never claimed to be infallible.
2. There is no infallible remedy to these problems.

Origin of INFALLIBLE

Middle English, from Medieval Latin infallibilis, from Latin in- + Late Latin fallibilis fallible

First Known Use: 15th century

Related to INFALLIBLE

Synonyms: unerring, unfailing

Antonyms: fallible

Related Words: errorless, faultless, flawless, impeccable; certain, foolproof, inerrant, perfect, sure; dependable, reliable

Near Antonyms: defective, faulty, flawed, imperfect; undependable, unreliable

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