Definition of murky adjective from the Oxford Advanced American Dictionary

     

    murky

     adjective
    adjective
    NAmE//ˈmərki//
     
    (murkier, murkiest)
     
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  1. 1(of a liquid) not clear; dark or dirty with mud or another substance synonym cloudy She gazed into the murky depths of the water.
  2. 2(of air, light, etc.) dark and unpleasant because of smoke, fog, etc. a murky night
  3. 3(disapproving or humorous) (of people's actions or character) not clearly known and suspected of not being honest He had a somewhat murky past. the murky world of arms dealing
See the Oxford Advanced Learner's Dictionary entry: murky