Related Clues:

• Unclear
• Gloomy
• Thin and light
• Not pellucid
• Like swamp water
• Hard to see through
• Dark and gloomy
• Difficult to penetrate
• Indefinite
• Far from obvious
• Dark, gloomy
• Darkly obscure
• Like dirty water
• Odd about the Bluegrass State being dark and gloomy