adj (-ier, -iest)
1 unpleasantly dark; gloomy 阴暗的; 昏暗的
*a murky night, with no moon 昏暗无月的夜
* The light was too murky to continue playing. 光线太暗不能再玩耍了.
* London's streets, murky with November fog. 伦敦的街道, 在十一月的雾中模糊不清.
2 (of water) dirty; unclear （指水）脏的, 混浊的
*She threw it into the river's murky depths. 她把它扔进了混浊的河水深处.
3 (fig derog or joc 比喻, 贬或谑) (of people's actions or character) not known but suspected of being immoral or dishonest （指人的行为或性格）可疑的, 不可告人的
*She had a decidedly murky past. 她的历史背景令人捉摸不透.

adj
dark and difficult to see through
　murky water
complicated and difficult to understand
= obscure
　The laws on intellectual property are murky.
　the murky waters (=complicated subject) of sexuality and jealousy
involving dishonest or illegal activities that are kept secret
= shady
　a murky world of fraud and secret deals
　a politician with a murky past
>murkinessn[U]