Definition of infallible adjective from the Oxford Advanced American Dictionary

     

    infallible

     adjective
    adjective
    NAmE//ɪnˈfæləbl//
     
     
    jump to other results
  1. 1never wrong; never making mistakes infallible advice Doctors are not infallible. opposite fallible
  2. 2that never fails; always doing what it is supposed to do an infallible method of memorizing things
infallibility
 
jump to other results
NAmE//ɪnˌfæləˈbɪlət̮i//
 
noun [uncountable] his belief in the infallibility of dreams as a guide to the future papal infallibility
NAmE//ɪnˈfæləbli//
 
adverb
See the Oxford Advanced Learner's Dictionary entry: infallible