Definition of colorless adjective from the Oxford Advanced American Dictionary

     

    colorless

     adjective
    (colourless)adjective
    NAmE//ˈkʌlərləs//
     
     
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  1. 1without color or very pale a colorless liquid like water
  2. 2not interesting synonym dull a colorless personality
See the Oxford Advanced Learner's Dictionary entry: colorless