Definition of infallible
infallibilityplay \(ˌ)in-ˌfa-lə-ˈbi-lə-tē\ noun
infalliblyplay \(ˌ)in-ˈfa-lə-blē\ adverb
Examples of infallible in a Sentence
I never claimed to be infallible.
There is no infallible remedy to these problems.
Recent Examples of infallible from the Web
The young science super heroes will experiment with physics to construct an air cannon, use math to read minds, use engineering to design and build an infallible fortress, create a foaming chemical reaction and more.
But while our data is collected aggressively these days, clearly companies still aren’t infallible.
Education isn’t infallibleOverall, education increases political knowledge and factual understanding.
But anyone who’s ever watched a baseball game knows that umps—and eyes and minds—aren’t infallible.
Mr. Russianoff, who is not infallible but has a long history of being right on these matters, scoffed.
Tuesday marked a second night at No. 3 for once-infallible Fox News Channel, as CNN snuck in for a primetime demo win over also-surging MSNBC.
Apparently, people are supposed to believe that climate scientists are as infallible as the Pope in Rome.
No need to leave the confines of their infallible marriage, no need to greatly expand their social circles, no need to meet new people and learn their stories—save all that for the other politicians.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'infallible'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Did You Know?
Watch out when you hear about infallible predictions, an infallible plan, an infallible cure, or even infallible lip gloss. Infallible isn't a claim that scientists, engineers, and doctors like to make, so you're probably getting better information when the word not comes first. You may have heard the phrase "papal infallibility", which refers to the official position of the Roman Catholic church, adopted in the 19th century, that certain solemn statements made by a Pope about faith or morals were not to be questioned. Popes since then have been careful not to make many of these statements.
Origin and Etymology of infallible
Middle English, from Medieval Latin infallibilis, from Latin in- + Late Latin fallibilis fallible
First Known Use: 15th centurySee Words from the same year
INFALLIBLE Defined for English Language Learners
Definition of infallible for English Language Learners
: not capable of being wrong or making mistakes : not fallible
: certain to work properly or succeed
INFALLIBLE Defined for Kids
Seen and Heard
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