(1):

(n.) Confused; indistinct; obscure; dark.

(2):

(n.) Consisting of a cloud or clouds.

(3):

(n.) Lacking clearness, brightness, or luster.

(4):

(n.) Marked with veins or sports of dark or various hues, as marble.

(5):

(n.) Indicating gloom, anxiety, sullenness, or ill-nature; not open or cheerful.

(6):

(n.) Overcast or obscured with clouds; clouded; as, a cloudy sky.