- 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.
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- 2(of air, light, etc.) dark and unpleasant because of smoke, fog, etc. a murky night
- 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
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