nebulousness

from The Collaborative International Dictionary of English v.0.48

Nebulous \Neb"u*lous\, a. [L. nebulosus: cf. F. n['e]buleux. See
   {Nebula}.]
   1. Cloudy; hazy; misty.
      [1913 Webster]

   2. (Astron.) Of, pertaining to, or having the appearance of,
      a nebula; nebular; cloudlike.
      [1913 Webster] -- {Neb"u*lous*ly}, adv. --
      {Neb"u*lous*ness}, n.
      [1913 Webster]