...trunks as thick as whisky casks and bark like rough-out leather, tower overhead so that the path between them is sheltered from the sun, creating a nubilous atmosphere, soft and pungent with resins, while soft brown needles cushion one's tread.
-- Michael Petracca, Captain Zzyzx
The sky above, dark and nubilous, parted like torn, plump bread and under a sun absorbent and intense, the water began to recede over low bridges. The storm was ending.
-- Elizabeth Léonie Simpson, Stranger From Home
Nubilous comes from the Latin root nūb meaning "cloud."