nebulous Meaning, Definition & Usage

  1. adjective satellite lacking definite form or limits
    nebulose; cloudy.
    • gropes among cloudy issues toward a feeble conclusion"- H.T.Moore
    • nebulous distinction between pride and conceit
  2. adjective of or relating to or resembling a nebula
    nebular.
    • the nebular hypothesis of the origin of the solar system
  3. adjective satellite lacking definition or definite content
    unfixed.
    • nebulous reasons
    • unfixed as were her general notions of what men ought to be"- Jane Austen

WordNet

Neb"u*lous adjective
Etymology
L. nebulosus: cf. F. nébuleux. See Nebula.
Definitions
  1. Cloudy; hazy; misty.
  2. (Astron.) Of, pertaining to, or having the appearance of, a nebula; nebular; cloudlike. -- Neb"u*lous*ly, adv. -- Neb"u*lous*ness, n.

Webster 1913