of or relating to or resembling a nebula; the nebular hypothesis of the origin of the solar system

[ Syn: nebular ]

lacking definite form or limits; gropes among cloudy issues toward a feeble conclusion- H.T.Moore; nebulous distinction between pride and conceit

[ Syn: cloudy , nebulose ]

lacking definition or definite content; nebulous reasons; unfixed as were her general notions of what men ought to be- Jane Austen

[ Syn: unfixed ]