Definition of faultless adjective from the Oxford Advanced American Dictionary

     

    faultless

     adjective
    adjective
    NAmE//ˈfɔltləs//
     
     
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  1. 1having no mistakes synonym perfect
  2. 2 faultless English Her piano-playing was faultless.
faultlessly
 
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adverb The engine performed faultlessly.
See the Oxford Advanced Learner's Dictionary entry: faultless