cadaverous (adj.)

• achromatic
• achromic
• anemic
• ashen
• ashy
• attenuated
• bloodless
• blue
• colorless
• dead
• deadly
• deathlike
• deathly
• dim
• dimmed
• dingy
• dull
• eerie
• emaciated
• etiolated
• exsanguine
• faded
• faint
• fallow
• flat
• ghastly
• ghostlike
• ghostly
• gray
• grisly
• gruesome
• haggard
• hollow-eyed
• hueless
• jejune
• lackluster
• leaden
• livid
• lurid
• lusterless
• macabre
• mat
• mealy
• mortuary
• muddy
• neutral
• pale
• pale-faced
• pallid
• pasty
• peaked
• peaky
• pinched
• poor
• puny
• sallow
• shriveled
• sickly
• skeletal
• starved
• toneless
• uncanny
• uncolored
• underfed
• undernourished
• unearthly
• wan
• washed-out
• wasted
• waxen
• weak
• weird
• white
• withered
• wizened
• wraithlike