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- pronunciation:
- In
fae
lih
b
 l
- features:
- Word Combinations (adjective), Word Parts
| part of speech: |
adjective |
| definition 1: |
incapable of error.
The computer's calculation is considered infallible.You are wrong if you think you're infallible; you're bound to make a mistake one day that you'll seriously regret.- antonyms:
- fallible
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| definition 2: |
not liable to error or failure; extremely reliable.
I will rely on your infallible judgment.This book is an infallible guide to travel in Italy.- antonyms:
- fallible
- similar words:
- unerring
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| definition 3: |
of the pope, incapable of fallacy or error in expounding Roman Catholic doctrine on faith or morals.
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| related words: |
immaculate, reliable, sure, true |
adverb + (adj.)infallible
almost, from, generally, nearly, neither, seemingly, supposedly, therefore, virtually
(adj.)infallible
+ noun
act,
authority,
bible,
bishop,
chain,
claim,
consensus,
demand,
detector,
dna,
doctor,
doctrine,
drawing,
ear,
error,
evidence,
exercise,
faith,
guidance,
guide,
hint,
instinct,
judge,
judgment,
knowledge,
lie,
location,
mean,
memory,
method,
nose,
pope,
predictor,
rule,
science,
sense,
sign,
signal,
smell,
source,
statement,
teaching,
test,
truth,
will,
word,
writer
[See all][See only the most frequent]
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| derivations: |
infallibly (adv.), infallibility (n.) |
The word infallible
contains the following parts:
in-2
Latin
prefix
that means not, without
  More about this word part:
The prefix in-2 occurs in Latin loanwords and attaches to Latinate bases. The bases of most words prefixed with in-2 are independent
adjectives ( inadvertent
, incognizant
), although the base adjective may no longer be in widespread use (as with incessant
). Exceptions include iniquitous
and indignant
. -in 2 has multiple forms, as the 'n' sound in in-2 assimilates to the initial sound of the base to which it is attached. See the assimilated forms ig-, il-2, im-2, and ir-2.
Example words:
inaccurate, inadvertent, inalienable, inanimate, inappropriate, inapt, inarticulate, inaudible, inauspicious, incapable, incessant, incest, incognito, incognizant, incommensurate, incommodious, incompetent, incomplete, incomprehensible, inconceivable, inconclusive, incongruous, inconsiderate, inconsonant, inconspicuous, inconvenient, incorporeal, incorrect, incorrigible, incorrupt, incredible, incredulous, incurable, indecorous, indefeasible, indefinite, indelible, indemnify, independence, independent, indescribable, indestructible, indignant, indirect, indispose, indistinct, individual, indivisible, indolent, indomitable, indubitable, inedible, ineffable, inefficient, ineluctable, inept, inequality, inequity, ineradicable, inert, inevitable, inexorable, inexpensive, inexpiable, inexplicable, infallible, infamous, infelicitous, infidel, infidelity, infinite, infinitesimal, infirmity, informal, infrequent, inimical, inimitable, iniquitous, iniquity, injure, injury, innocuous, innominate, inordinate, insane, insatiable, inscrutable, inseparable, insipid, insolent, insomnia, insouciant, insuperable, intangible, interminable, intractable, intransigent, intransitive, intrepid, invaluable, inveracity, invincible, invisible, irregular
fall, fals
Latin
root
that means to deceive
Example words:
-able, -ible, -ble
Latin
adjective-forming suffix
that means capable of being, doing, or undergoing
More about this word part:
The suffix -able
, and its variants, is attached to Latin verb roots or English transitive verbs to form adjectives. (In a small set of cases, -able
is attached to a noun, e.g. knowledgeable and marriageable.) For spelling purposes, it is useful to know that -able
is more likely to be added to a whole English word (comparable
, adorable
), while -ible
is more likely to follow a bound root (visible
, legible
). However,there are still many words which combine a root with -able
(capable
, inevitable
). The suffix -ity can be added to any adjective ending in -able
, -ible
, -ble
to produce a corresponding noun ending in -ability, -ibility, -bility (possible
+ -ity > possibility; irrevocable
+ -ity > irrevocability.)
Example words:
acceptable, accessible, admissible, adorable, amiable, amicable, audible, avoidable, believable, bearable, biodegradable, capable, calculable, cognizable, comparable, compatible, comprehensible, conformable, conversable, convertible, corrigible, credible, creditable, curable, dependable, despicable, disagreeable, disposable, divisible, eligible, explicable, flammable, flexible, illegible, illimitable, imaginable, immiscible, immovable, immutable, impalpable, impassable, impeccable, impermeable, impermissible, imperturbable, implacable, implausible, imponderable, impossible, impregnable, inalienable, inaudible, incapable, incalculable, incommunicable, incomprehensible, inconceivable, detectable, conceivable, incorrigible, incredible, incurable, indefeasible, indelible, indescribable, indestructible, indivisible, indomitable, ineligible, ineluctable, ineradicable, inescapable, inevitable, inexorable, inexpiable, inexplicable, infallible, inhospitable, inimitable, inscrutable, inseparable, insuperable, intangible, interminable, intractable, invaluable, invariable, invincible, invisible, irrefragable, irrefutable, irremissible, irreparable, irreversible, irrevocable, legible, likable, lovable, manageable, measurable, movable, navigable, notable, opposable, palpable, perishable, permissible, placable, portable, possible, potable, predictable, preferable, prescriptible, recognizable, remissible, reprehensible, reversible, risible, semipermeable, sensible, superable, susceptible, tangible, tenable, tolerable, tractable, transmissible, unsupportable, usable, viable, visible, washable, affordable, allowable, reliable, remarkable, approachable, disputable, drinkable, durable, eatable, renewable, sustainable, unshakable
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