Dictionary.com
Thesaurus.com
Synonyms

fallible

American  
[fal-uh-buhl] / ˈfæl ə bəl /

adjective

  1. (of persons) liable to err, especially in being deceived or mistaken.

  2. liable to be erroneous or false; not accurate.

    fallible information.


fallible British  
/ ˈfælɪbəl /

adjective

  1. capable of being mistaken; erring

  2. liable to mislead

"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

Other Word Forms

Etymology

Origin of fallible

First recorded in 1375–1425; late Middle English, from Medieval Latin fallibilis, equivalent to Latin fall(ī) (passive of fallere “to deceive”) + -ibilis -ible

Explanation

As humans we are all fallible, because fallible means likely to make errors or fail. Nobody's perfect, after all. Fall down on the job and you're fallible. It's a forgiving way to say you screwed up. If a scientific experiment's data is fallible, that means you can't trust the numbers. More than just locking your keys in the car, fallible can allude to a lack of moral strength. If in addition to locking your keys in the car, you kissed your best friend's husband, you might try using "I'm fallible" as your defense.

Keep Reading on Vocabulary.com

Vocabulary lists containing fallible

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It is alarming that we live in a moment of widespread ignorance that CPS caseworkers, like all fallible government officials, are bound by the Constitution.

From Slate • Jul. 7, 2026

They took an absurdly gifted, if fallible France team to the very last second and backed up their endorsements of head coach Steve Borthwick in interviews, with actions on the pitch.

From BBC • Mar. 14, 2026

So long as human bodies are fallible to disease, we will need labs studying viruses, bacteria, fungi and parasites to see which ones could cause major problems.

From Salon • Feb. 28, 2026

From this place of old age and treatable illness, Julian ruminates on the fallible nature of memory and its role in shaping our identities.

From The Wall Street Journal • Jan. 16, 2026

It is a surprise that we haven’t already learned that the word is a fallible incantation.

From "The Lives of a Cell" by Lewis Thomas

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "fallible" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com