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Pronunciation:  in'falubul

WordNet Dictionary
[adj]  incapable of failure or error; "an infallible antidote"; "an infallible memmory"; "the Catholic Church considers the Pope infallible"; "no doctor is infallible"

INFALLIBLE is a 10 letter word that starts with I.


 Synonyms: foolproof, inerrable, inerrant, unerring, unfailing
 Antonyms: fallible



Webster's 1913 Dictionary
\In*fal"li*ble\, a. [Pref. in- not + fallible: cf. F.
1. Not fallible; not capable of erring; entirely exempt from
   liability to mistake; unerring; inerrable. --Dryden.

2. 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.   --Acts i. 3.

3. (R. C. Ch.) Incapable of error in defining doctrines
   touching faith or morals. See {Papal infallibility}, under

Thesaurus Terms
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