Lewis Short
(adjective) : nĕbŭlōsus, a, um, nebula
* Full of mist or vapor, misty, foggy, cloudy, dark.
* Lit.: ager si nebulosus est,Cato, R. R. 6: nebulosum et caliginosum caelum,Cic. Tusc. 1, 25, 60: nebulosus et roscidus aër,Plin. 21, 7, 18, § 36: exhalatio,id. 31, 3, 27, § 44: dies nebulosi nubilive,Cels. 2, 1.
* Esp. of a fine texture, cloud-like, = νεφέλαι, nebulosa retia, Aus. Ep. 3, 5.—*
* Trop., dark, difficult to understand: nomen,Gell. 20, 3, 3.
Charlton T. Lewis, Charles Short, A Latin Dictionary