fallible

adjective

fal·​li·​ble ˈfa-lə-bəl How to pronounce fallible (audio)
1
: liable to be erroneous
a fallible generalization
2
: capable of making a mistake
we're all fallible
fallibly adverb

Did you know?

Humanum est errare” is a Latin expression that translates as “To err is human.” Of course, cynics might say that it is also human to deceive. The history of the word fallible simultaneously recognizes both of these character flaws. In modern usage, fallible refers to one’s ability to make mistakes, but it descends from the Latin verb fallere, which means “to deceive.” Fallible has been used to describe the potential for error since at least the 15th century. Other descendants of fallere in English, all of which actually predate fallible, include fallacy (the earliest, now obsolete, meaning was “guile, trickery”), fault, false, and even fjail. Whoops, we mean fail.

Examples of fallible in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But humans are fallible, and there have been a lot of mistakes made that have put us right on the brink of international incidents that could have led to nuclear war. EW.com, 8 Aug. 2025 Stewart already positioned himself as fallible, which made his earnestness more endearing. Bethy Squires, Vulture, 1 Aug. 2025 The Chinese star could only laugh a hole later when Scheffler, at last looking fallible after an underhit tee shot left him with an uphill battle to extend his run of 30 holes without bogey, rolled in from 16 feet. Jack Bantock, CNN Money, 20 July 2025 Indeed, in stark contrast to the incorporeal nature of a digital image, each of Winant’s photographs is, in a sense, a discrete body: a fallible material entity that boasts a hidden physical history and that will compositionally deteriorate over time. Jessica Simmons-Reid, Artforum, 1 June 2025 See All Example Sentences for fallible

Word History

Etymology

Middle English, from Medieval Latin fallibilis, from Latin fallere

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of fallible was in the 15th century

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Cite this Entry

“Fallible.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fallible. Accessed 22 Aug. 2025.

Kids Definition

fallible

adjective
fal·​li·​ble ˈfal-ə-bəl How to pronounce fallible (audio)
: capable of making a mistake or being wrong
fallibility
ˌfal-ə-ˈbil-ət-ē
noun
fallibly adverb

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