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Definition of infallibility

infallibility

/ɪnˌfæl.əˈbɪl.ə.ti/
in · fal · li · bil · i · ty
Adverb:infallibly
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Plural:infallibilities
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Adjective:infallible
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infallibility Lexical Profile

infallibility Game Scores & Validity

• noun

1

The quality or state of being incapable of making mistakes, being wrong, or failing.

Example

"Scientists readily acknowledge that the peer-review process does not guarantee absolute infallibility."

2

In Christian theology, the doctrine that the Pope, acting in an official capacity on matters of faith and morals, or the Church as a whole, is preserved by divine assistance from the possibility of error.

Example

"The First Vatican Council formally defined the dogma of papal infallibility in the late nineteenth century."

Synonyms
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Antonyms
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• Rhymes for infallibility

• Nearby Words

inexpressive
inextinguishable
inextricably
infallibility
infallible
infallibly
infamous

Word Origin & Etymology

Borrowed from Medieval Latin infallibilitas, derived from infallibilis ('incapable of erring'), from the prefix in- ('not') and fallere ('to deceive or trip').

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Infallibility. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/infallibility
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