Definition of Nebulous

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