1. Dark and gloomy; lacking light or clarity
The murky waters of the swamp made it impossible to see the bottom.
As águas turvas do pântano tornavam impossível ver o fundo.
2. Unclear, obscure, or difficult to understand
The details of the deal remained murky even after the meeting.
Os detalhes do acordo permaneceram obscuros mesmo após a reunião.
3. Suspicious or questionable in character or origin
He has a murky past that nobody wants to discuss.
Ele tem um passado duvidoso que ninguém quer discutir.