Answer: BLUER

AnswerCrossword Clue
BLUERMore morose
BLUERUltramarine plus.
BLUERMore unhappy.
BLUERMore cerulean.
BLUERMore melancholy.
BLUERNot so gay
BLUERMore forlorn
BLUERMore unhappy
BLUERSadder
BLUERFurther down
BLUERDeeper in gloom.
BLUERRelatively sad
BLUERMore dispirited
BLUERMore like a clear sky
bluerdepressed or unhappy
bluerBLUE, having the colour of a clear sky
bluerto make blue
bluerindecent
bluer(of skin) discolored as by cold
bluerthe color of a clear sky
BLUERMore depressed
BLUERFurther down?
BLUERNot as cheery
BLUERMore azure
BLUERMore navy than teal, say
BLUERMore gloomy
BLUERDeeper down in the dumps
BLUERLess chipper
BLUERMore bummed
BLUERMore melancholy
BLUERMore mopey
BLUERMore in the doldrums
BLUERMore down
BLUERClearer, as the sky
BLUERMore deeply colored, as a clear sky
BLUERNot as happy
BLUERMore sad
BLUERNot as up
BLUERMore despondent