Which preposition to use with nebulous

as Occurrences 1%

'Oh! beautifully draped garments nebulous as summer clouds and filmy as gossamer webs.

by Occurrences 1%

Both Maud and the lover are too nebulous by far; and they remind us of the boneless and pulpy personages by whom, as Dr. Whewell assures us, the planet Jupiter is inhabited, if inhabited at all.

in Occurrences 1%

The character of Conrad is undoubtedly finely imagined; as the painters would say, it is in the highest style of art, and brought out with sublime effect; but still it is only another phase of the same portentous meteor, that was nebulous in Childe Harold, and fiery in The Giaour.

Which preposition to use with  nebulous