Dimly lit, as at dusk (evening).
Ashen; having a greyish skin coloration.
Having a shade of color that is rather dark.
A dusky dolphin.
A dusky grouse.
A dusky shark.
Obscured by mist or fog; unclear; hazy
Being, covered with, or pertaining to fog (“tall grass etc that grows after, or is left after, cutting; moss”)
Confused, befuddled, etc.