blue

I. a.

1.

Azure, cerulean, sapphirine, amethystine, sky-colored.

2.

Livid, ghastly, pallid.

3.

(Colloq.) Melancholy, dejected, dispirited, depressed, sad, glum, gloomy, mopish, downcast, desponding, downhearted, hypochondriac, hipped, chapfallen, low-spirited, cast down, in the dumps, with a long face, in the blues, down in the mouth.

4.

(Colloq.) Dismal, depressing, doleful, gloomy, dispiriting, melancholy, disheartening.

5.

Pedantic (said of women), on the blue-stocking order, sapient.

II. n.

Azure, sky-color, cerulean, amethystine, sapphirine.