In the form of a cloud or haze; hazy.; (of a concept or idea) unclear, vague, or ill-defined.
‘a giant nebulous glow’
‘It expanded into a nebulous circle of shifting light.’
‘Smudges like this are called nebulae, because they look nebulous — like hazy clouds.’
‘He nimbly steers his magic carpet through the nebulous and confusing post-modern clouds of the internet.’
‘Where others in this vein opt for a hazy, nebulous cloud of half-remembered dreams, Manitoba’s music is direct and unassuming while still remaining evocative.’
‘A thick, nebulous haze, caused by the manufacturing process, pervaded everywhere, revealing sparks and the blindingly bright radiance of welding from time to time.’
туманный, расплывчатый, неясный, смутный, облачный