Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Incapable of erring: an infallible guide; an infallible source of information.
- adj. Incapable of failing; certain: an infallible antidote; an infallible rule.
- adj. Roman Catholic Church Incapable of error in expounding doctrine on faith or morals.
Century Dictionary and Cyclopedia
- Not fallible in knowledge, judgment, or opinion; exempt from fallacy or liability to error; unerring.
- Unfailing in character or effect; exempt from uncertainty or liability to failure; absolutely trustworthy.
Wiktionary
GNU Webster's 1913
- adj. Not fallible; not capable of erring; entirely exempt from liability to mistake; unerring; inerrable.
- adj. Not liable to fail, deceive, or disappoint; indubitable; sure; certain.
- adj. (R. C. Ch.) Incapable of error in defining doctrines touching faith or morals. See Papal infallibility, under Infallibility.
WordNet 3.0
- adj. incapable of failure or error
Etymologies
- From Medieval Latin infallibilis, from Latin in- + fallibilis. Compare French infaillible. (Wiktionary)
- Middle English, from Medieval Latin īnfallibilis : Latin in-, not; see in-1 + Medieval Latin fallibilis, fallible; see fallible. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“The only infallibility they have is that which they define as infallible eg. “oops, a bug!””
“They look at Superbowl Guy like he was a superstitious "ex" Nazi, somewhere to the right of Attila The Hun, who preaches discrimination against gays and women, believes himself to be infallible, is a firm roadblock to social progress, dictates policies that ensures the spread of AIDS, dresses like an overly-rich drag queen with no taste, and devotes his time to protecting child molesters around the globe?”
The Huffington Post: Tallulah Morehead: Survivor 21: Infants vs Senior Citizens: Triage for Dummies.
“He has to make a quick visit to Dr. Hervey, a leprosy specialist who has developed a certain infallible test ...”
“Everyone makes mistakes at some point; to assume healthcare professionals are infallible is ridiculous.”
“ONE way of feeling infallible is not to keep a diary.”
“O, my Lord," answered he, "if health were the only cause of a lady's bloom, my eye, I grant, had been infallible from the first glance; but –”
Evelina: or, The History of a Young Lady's Entrance Into the World
“What seems to be a battle over scripture -- how to read, how to interpret, whether it is "infallible" -- is in fact about the shift from a modern to postmodern world and how we understand power and authority.”
The Huffington Post: Jason Derr: Can We Have Religion Without Religion and God Without God?
“The issue isn't that some of these people call their infallible beliefs and faith "religion" or "communism", the two key issues are the belief that they, or what ever authority they think their belief comes from, can't ever be wrong about anything, and unjustified faith that everything will just work, if they stick with their guns and force it on everyone.”
Standards For Use of Religion By Political Candidates Proposed
“As Islam emerged within this culture, the consensus of the community became by definition infallible.”
“As long as man believes the bible to be infallible, that is his master.”
Lists
These user-created lists contain the word ‘infallible’.
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GRE Barrons Wordlist
A complete Barron's Wordlist for GRE preparation. Your online flashcard replacement.
abase, abash, abate, abbreviate, abdicate, aberrant, aberration, abet, abeyance, abhor, abject, abjure and 4087 more...
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Mobying Along
looks like there's not an open Moby Dick list. So now there is.
hypos, Manhattoes, circumambulate, mole, grapnels, bowsprit, asphaltic, mazy, tranced, cataract, ungraspable, judgmatically and 227 more...
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avfordomd's list
lexicon
copacetic, amiable, philanthropic, misanthropic, gregarious, vehement, parcel, congregate, paucity, passel, multitudinous, pulchritudinous and 98 more...
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GRE 2014
abase, abate, abdicate, aberrant, abeyance, abhor, abjure, abortive, abound, abrasive, abreast, abridge and 1577 more...
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Naresh_Gre2
convoke, cosset, coterie, declaim, distaff, doff, dovetail, droll, dyspeptic, egress, ersatz, euphemism and 108 more...
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My Little Phonies
Names for the next generation of My Little Ponies. Inspired by Star's list.
juggernaught, flamboyant, cuddly maggot, astrobleme, agroof, windburn, poshlost, crucifer, feedbag, dunderwhelp, nebelwerfer, bliss ninny and 453 more...
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man gre
abase, abeyance, abreast, abscission, abscond, abyss, accede, accretion, acerbic, acidulous, acumen, adulterate and 483 more...
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SAT words
tergiversate, cymotrichous, vigilance, wince, consternation, cower, neutralize, euphony, cacophony, misanthrope, bibliophile, kleptomania and 81 more...
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big book gre
abase, abbess, abbey, abbot, abdicate, abdomen, abdominal, abduction, abed, aberration, abet, abeyance and 6691 more...
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gre2
aberrant, aberration, aboveboard, abrasive, abstemious, acme, admonish, affable, affluent, alacrity, allegory, alleviate and 1856 more...
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MY COLLECTION
COLLECT FROM DIFFERENT PAPERS,WEBSITES,BOOKS AND MOVIES.
VAUDEVILLE, herbivores, BANDWAGON, PREY, squander, squabbling, Concierge, persuade, dethrone, cacophony, maize, ubiquitous and 98 more...
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Angels and Demons Word list
behemoth, disquietude, exalted, heretical, schlock, delirium, precipice, infallible, fathom, fervent, cavern, ardent and 35 more...
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Personal Vocabulary List
All my favourite words that I come across!
veritable, incongruence, rigamorole, letcherous, revolting, repulsive, reputrid, rapatious, forays, guise, placate, paradigm and 1162 more...
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Barron's 1100 words you need to know ...
avarice, bedlam, cacophony, compatible, disgruntled, equanimity, eradicate, exploit, impede, infallible, insatiable, irrational and 8 more...
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Rubbies
Words and things that rub me wrong
eclectic, canon, flesh, irregardless, conversate, can't, mandatory, war on christmas, male bonding, pissa, parochial, infallible and 98 more...
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Necessary?
"Words are very..."
The above was the original description for this list. Unfortunately, it doesn't convey much about the list contents.
I'm leaving you to draw your own conclusions abo...supererogation, fruitcake, unbeknownst, melifluous, bane, cavy, unnecessary, lyrical, question, undertow, weapon, arduous and 200 more...
Tweets
Looking for tweets for infallible.

dontcry I saw the pope in the woods the other day (I was frolicing on my way to damnation) and I'm like, "Dude, where're your little red shoes?" And the pope just muttered, "Damn bear..." May 6, 2008
chained_bear This is correct. And the year was 1854, I believe. (I always thought it was 1864, but Wikipedia says I'm wrong. Hmph.) It is shocking to me--well, maybe not actually shocking; more like surprising--how many Catholics don't know about the ex cathedra thing, or when was the last time the pope sat in it while loudly declaiming something. Non-Catholics I would expect not to know about it because, you know, it's easier just to say the lovely word infallible and be done with it. (It does give good mouthfeel.)
Dude, the pontiff abolished limbo? I missed that memo. May 6, 2008
sionnach Indeed. Not that I've been keeping serious track, But I think the last time that happened was over a century ago, when the pontiff at the time weighed in on the important doctrinal issue of the Immaculate Conception.
A question which many non-catholics (and more than a few catholics) regularly confuse with the virgin birth of Christ.
So, let's be clear, wordies. The doctrine of the Immaculate Conception states that Mary, mother of Jesus, was born free of original sin, that unsightly blemish which besmirches the soul of us lesser mortals at birth. It has nothing whatsoever to do with her state of virginity or otherwise at the conception of Jesus. The 'conception' in 'Immaculate Conception' refers to that of Mary, not Jesus.
As the pope was sitting in his infallible chair when he explained this, Catholics are expected to believe it. And to go to mass on December 8th to celebrate it.
Non-Catholics (see heathen or pagan) may believe whatever they like as they frolic on the road to their damnation.
In other news, Pope Rat-zinger recently abolished limbo, but reopened hell. But I don't think he was sitting in the infallibility chair at the time. May 6, 2008
chained_bear only when he speaks ex cathedra, actually. May 6, 2008
whichbe Did you know that The Pope was infallible? May 6, 2008