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



    BrE BrE//ˈsaʊndnəs//
    ; NAmE NAmE//ˈsaʊndnəs//
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  1. 1the quality of being sensible; the fact that something can be relied on and will probably give good results soundness of judgement financial soundness opposite unsoundness (1)
  2. 2the quality of being good and thorough He had confidence in the soundness of his understanding of physics.
  3. 3the fact of being in good condition; the fact of not being damaged, hurt, etc. the soundness of the building’s foundations opposite unsoundness (2)