[fal-uh-buh l]


(of persons) liable to err, especially in being deceived or mistaken.
liable to be erroneous or false; not accurate: fallible information.

Origin of fallible

1375–1425; late Middle English < Medieval Latin fallibilis, equivalent to Latin fall(ī) (passive of fallere to deceive) + -ibilis -ible
Related formsfal·li·bil·i·ty, fal·li·ble·ness, nounfal·li·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for fallibility



capable of being mistaken; erring
liable to mislead
Derived Formsfallibility or fallibleness, nounfallibly, adverb

Word Origin for fallible

C15: from Medieval Latin fallibilis, from Latin fallere to deceive
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for fallibility

1630s; see fallible + -ity.



early 15c., from Medieval Latin fallibilis "liable to err, deceitful." literally "that can be deceived," from Latin fallere "deceive" (see fail).

Online Etymology Dictionary, © 2010 Douglas Harper