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Definition of infallibly

infallibly

/ɪnˈfæl.ə.bli/
in · fal · li · bly
Adjective:infallible
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infallibly Lexical Profile

infallibly Game Scores & Validity

• adverb

1

In a manner that is incapable of making mistakes or being wrong; with complete accuracy and certainty.

Example

"The veteran navigator guided the vessel infallibly through the treacherous coastal fog."

2

Without fail; inevitably or every single time.

Example

"Whenever the topic of local history comes up, my grandfather infallibly recounts the story of the town's founding."

Synonyms
View all synonyms for infallibly
Antonyms
View all antonyms for infallibly

• Rhymes for infallibly

• Nearby Words

inextricably
infallibility
infallible
infallibly
infamous
infamously
infamy

Word Origin & Etymology

Formed in the 15th century from the adjective 'infallible' plus the adverbial suffix '-ly', tracing back to Medieval Latin 'infallibilis', from Latin '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 Infallibly. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/infallibly
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