Definition of reliability noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//rɪˌlaɪəˈbɪləti//
    ; NAmE NAmE//rɪˌlaɪəˈbɪləti//
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  1. 1the quality of being able to be trusted to do what somebody wants or needs synonym dependability The incident cast doubt on her motives and reliability.
  2. 2the quality of being likely to be correct or true The reliability of these results has been questioned. Lawyers sought to cast doubt on the reliability of her statements.
  3. 3the quality of being able to work or operate for long periods without breaking down or needing attention The aircraft has an exceptional record of reliability.
  4. opposite unreliability
    Word Familyrely verbreliable adjective (unreliable)reliably adverbreliability noun (unreliability)reliance noun