Nebulous
WordNet
adjective
(1) Lacking definition or definite content
"Nebulous reasons"
"Unfixed as were her general notions of what men ought to be"- Jane Austen
(2) Lacking definite form or limits
"Gropes among cloudy issues toward a feeble conclusion"- H.T.Moore
"Nebulous distinction between pride and conceit"
(3) Of or relating to or resembling a nebula
"The nebular hypothesis of the origin of the solar system"
WiktionaryText
Adjective
- In the form of a cloud or haze; hazy.
- Vague or ill-defined.
- Relating to a nebula or nebulae.