• WordNet 3.6
    • adj infallible incapable of failure or error "an infallible antidote","an infallible memory","the Catholic Church considers the Pope infallible","no doctor is infallible"
    • ***
Webster's Revised Unabridged Dictionary
    • Infallible (R. C. Ch) Incapable of error in defining doctrines touching faith or morals. See Papal infallibility, under Infallibility.
    • Infallible Not fallible; not capable of erring; entirely exempt from liability to mistake; unerring; inerrable.
    • Infallible Not liable to fail, deceive, or disappoint; indubitable; sure; certain; as, infallible evidence; infallible success; an infallible remedy. "To whom also he showed himself alive, after his passion, by many infallible proofs."
    • ***
Century Dictionary and Cyclopedia
    • infallible Not fallible in knowledge, judgment, or opinion; exempt from fallacy or liability to error; unerring.
    • infallible Unfailing in character or effect; exempt from uncertainty or liability to failure; absolutely trustworthy.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Infallible in-fal′i-bl incapable of error: trustworthy: certain
    • ***


  • Joseph Addison
    “The fear of death often proves mortal, and sets people on methods to save their Lives, which infallibly destroy them.”
  • Lord Byron
    “He scratched his ear, the infallible resource to which embarrassed people have recourse.”
  • Francesco Petrarch
    Francesco Petrarch
    “Five enemies of peace inhabit with us -- avarice, ambition, envy, anger, and pride; if these were to be banished, we should infallibly enjoy perpetual peace.”
  • Blaise Pascal
    “We like security: we like the pope to be infallible in matters of faith, and grave doctors to be so in moral questions so that we can feel reassured.”
  • William Hepworth Thompson
    William Hepworth Thompson
    “We are none of us infallible -- not even the youngest of us.”
  • Edward Gibbon
    “Corruption, the most infallible symptom of constitutional liberty.”


Webster's Revised Unabridged Dictionary
Pref. in-, not + fallible,: cf. F. infallible,


In literature:

Capitalism is the cause of our dense population; and the proletariat would infallibly cut their own throats by destroying it.
"Outspoken Essays" by William Ralph Inge
She was acting, for a perfectly infallible machine like Miss Beach, almost queer.
"The Real Adventure" by Henry Kitchell Webster
The voice of every deputy, especially my voice, would infallibly have been stifled.
"The Works of the Right Honourable Edmund Burke, Vol. V. (of 12)" by Edmund Burke
Other methods were then recommended and followed, as infallible means of restoring peace and order.
"The Works of the Right Honourable Edmund Burke, Vol. VI. (of 12)" by Edmund Burke
It cannot be said that the French Church exactly favoured the infallibility.
"Edward Caldwell Moore" by Edward Moore
The dogma of Papal infallibility is an instance in point.
"The Purpose of the Papacy" by John S. Vaughan
The infallible receipt for Happiness, then, is to do good; and the infallible receipt for doing good is to abide in Christ.
"The Greatest Thing In the World and Other Addresses" by Henry Drummond
He demurs to the acceptance of the Gospels as infallibly true.
"The English Church in the Eighteenth Century" by Charles J. Abbey and John H. Overton
It must not have its own way, or it will infallibly assert its sway over the man's real self.
"The Discipline of War" by John Hasloch Potter
Perhaps it is precisely the transcendent glory of divine freedom to be able to work infallibly through free instruments.
"Theodicy" by G. W. Leibniz
The characteristic I speak of is an absolute infallibility.
"Is Life Worth Living?" by William Hurrell Mallock
Fortunately, however, for me, I happened to meet with your infallible "Pills to Purge Melancholy," and tried Nos.
"Punch, or the London Charivari, Volume 1, Complete" by Various
He that took up Mineralogy, would infallibly also take up the three first as far as Chemistry.
"Practical Essays" by Alexander Bain
Their authors have no infallible gift of discerning truth from error.
"Pilgrimage from the Alps to the Tiber" by James Aitken Wylie
Finally, the desire for some infallible guide in the midst of our doubts and difficulties is equally wide of the mark.
"The Life of Sir James Fitzjames Stephen, Bart., K.C.S.I." by Sir Leslie Stephen
Nay, on that woman whom you call weak you impose infallibility.
"Rambles in Womanland" by Max O'Rell
I'm even more infallible about the world.
"Sinister Street, vol. 2" by Compton Mackenzie
Misuse of word infallibility.
"The Popes and Science" by James J. Walsh
The infallibility of the pontiff not extending to matters of science, he committed the same mistake.
"History of the Intellectual Development of Europe, Volume II (of 2)" by John William Draper
This rule is infallible.
"How to Read Human Nature" by William Walker Atkinson

In poetry:

Fool! thrice fool!
do I hanker after that too? Fancy me
infallible nursery saint, live code of law!
me preaching! teaching innocence to be good!
a mother!
"A Castaway" by Augusta Davies Webster
Make an infallible motion, call back
chilly winds pouring out of pitchers
a flamelike lotion.
'tis night today, and I wake before I ripen
in the mirrors of your tears.
"Night" by Krzysztof Kamil Baczynski
'Stand!' shouted the bobbies in accents most dread,
'Or else you will taste our infallible lead.'
But the maids of the mountains just laughed at poor Clark,
And galloped away to continue their lark.
"The Maids of the Mountains" by Anonymous Oceania
The Latin swears his Roman Pope is judge infallible.
Wherefore you may be very sure the Devil from his skull
Will drink a toast unto all liars, who such a lie aver--
Tho they believe, as we all believe, in the Holy Sepulchre!
"A Song Of The Sects" by Cale Young Rice

In news:

NEW YORK (AP) — Marvin Hamlisch was blessed with perfect pitch and an infallible ear.
An idea that is indestructible and infallibly true in the minds of the people who believe in it.
Papal Toilet Paper has Infallible Softness, Divine Durability.
How to Admire Leaders Without Thinking They're Infallible .
Three Definitely Infallible Predictions for the Rest of the World Series.
Heroes Are Not Infallible .
L'Oreal Paris Infallible Never Fail Makeup Foundation.
The "YouTubes" are infallible .
And remember that whole infallibility thing.
When a true genius appears in the world you may know him by this infallible sign, that the dunces are all in confederacy against him.
Just because an artist is legendary doesn't make him infallible.
The pulsar 's powerful magnetic field directs infalling gas onto the star's magnetic poles.
If you believe that God (or Mother Nature) is infallible then why tamper with His bounty.
Dr Grordbort's Infallible Aether Oscillators, once the cutting edge of ray-pistol technology, were thought to be lost for all time.
The Florida Supreme Court ruled last year that the idea of the infallible dog is "a creation of legal fiction.".

In science:

Figures 5-7 show that the lobe-like appearance of our shells is a transient phenomenon created by anisotropy in the infalling gas.
Trapped Protostellar Winds and their Breakout
More recently, Delamarter et al. (2000) utilized as an infalling background the flattened, rotating cloud of Hartmann, Calvet, & Boss (1996).
Trapped Protostellar Winds and their Breakout
Following the arguments in §7.1, it may be that simultaneous infall and outflow occur well before our idealized model indicates the onset of breakout.
Trapped Protostellar Winds and their Breakout
At very early times, the wind is crushed by ram pressure associated with infalling matter.
Trapped Protostellar Winds and their Breakout
The three loci (solid curves) correspond to three ratios, α, of the wind mass loss to infall accretion rate.
Trapped Protostellar Winds and their Breakout
The integration constant ˙m is physically identified with the mass infall rate and therefore ˙m > 0.
Viscosity in spherically symmetric accretion
Such a prescription is not entirely without its context or relevance, because spherically symmetric infall of matter is expected to be seen in accretion from the interstellar medium on to an isolated accretor, and the interstellar medium, as has been well known, displays turbulent behaviour.
Viscosity in spherically symmetric accretion
The two terms ( ˙Gi )inf and ( ˙Gi )out account for the infalling external gas from the intergalactic medium and for the outflow, occurring by means of SN driven galactic winds, respectively.
The cosmic evolution of the galaxy luminosity density
On impact with the intra-cluster medium, galaxies that are infalling onto the cluster have their gas removed.
At the Vigintennial of the Butcher-Oemler Effect
Kodama & Smail (2001) report that whatever the nature of the morphological transformation mechanism, the process requires 1–3 Gyr to complete from initial infall and that clusters must necessarily have a high accretion rate.
At the Vigintennial of the Butcher-Oemler Effect
Most of the molecular gas is separated spatially and kinematically from the supernebula and from the optical star clusters near it; the infalling gas cannot be associated causally with the current forming star cluster.
Watching the Birth of Super Star Clusters
For example the mass ratio of the Perseus merger may be so large (i.e. the mass of the in–falling system so small rela tive to Perseus) as to not be relevant to the current discussion.
A Hubble Space Telescope Lensing Survey of X-ray Luminous Galaxy Clusters: IV. Mass, Structure and Thermodynamics of Cluster Cores at z=0.2
Mihos et al. (2003) proposed that infalling sub-groups may have high enough gas density to strip the cold gas.
Are Passive Spiral Galaxies Truly "Passive" and "Spiral"? : Near-Infrared Perspective
By this time, the parental cloud has been largely cleared away and infall of new material as well as accretion onto the star has virtually ceased.
Dust coagulation in protoplanetary disks: a rapid depletion of small grains
The exact limit on the amount of infalling material which can be relevant for the disk opacity is not easily estimated.
Dust coagulation in protoplanetary disks: a rapid depletion of small grains