ˈ ̷ ̷ ̷ ̷ləs adjective
Etymology: Latin nebulosus, from nebula mist, cloud + -osus -ous, -ose — more at nebula
1. archaic : full of clouds : cloudy , foggy
2.
a. : lacking clarity of feature or sharpness of outline : hazy , indistinct
nebulous memory
nebulous line between confidence and overconfidence — Wall Street Journal
b. : vaguely defined : poorly grasped : dimly realized
nebulous hopes and fears
nebulous social values — A.H.MacCormick
3. : not transparent : turbid , clouded
4. : of, relating to, or resembling a nebula : nebular
• neb·u·lous·ly adverb
• neb·u·lous·ness noun -es