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

     

    dimness

     noun
    noun
    BrE BrE//ˈdɪmnəs//
     
    ; NAmE NAmE//ˈdɪmnəs//
     
    [uncountable]
     
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  1. 1the quality of not being bright It took a while for his eyes to adjust to the dimness.
  2. 2the quality of a memory or somebody's memory not being clear synonym vagueness
  3. 3(informal, especially British English) lack of intelligence
  4. see also dimly