somber (adj.)

• apocalyptic
• ashen
• ashy
• bad
• baleful
• baneful
• black
• blackish
• bleak
• boding
• caliginous
• canescent
• clouded
• cloudy
• creamy
• dappled
• dark
• dark-colored
• darkish
• dead
• deadened
• decorous
• delicate
• demure
• depressing
• depressive
• dim
• dingy
• dire
• dismal
• dispiriting
• drab
• drear
• dreary
• dull
• dusky
• dusty
• earnest
• evil
• fateful
• flat
• foreboding
• formal
• frowning
• funereal
• glaucous
• gloomful
• glooming
• gloomy
• grave
• gray
• gray-black
• gray-brown
• gray-green
• gray-white
• grayish
• grim
• grizzled
• grizzly
• ill
• ill-fated
• ill-omened
• ill-starred
• inauspicious
• iridescent
• iron-gray
• lackluster
• leaden
• lifeless
• light
• livid
• long-faced
• lowering
• lusterless
• mat
• mellow
• menacing
• mouse-colored
• mousy
• murky
• nacreous
• no-nonsense
• obscure
• ominous
• opalescent
• overcast
• pale
• pastel
• pearly
• portentous
• quiet
• sad
• saturnine
• sedate
• serious
• silver
• silver-gray
• silvery
• simple
• sinister
• slaty
• smoky
• sober
• sobersided
• soft
• softened
• solemn
• staid
• steely
• stormy
• subdued
• subtle
• swart
• swarthy
• sweet
• taupe
• tender
• tenebrous
• thoughtful
• threatening
• unfavorable
• unfortunate
• unlucky
• unpromising
• unpropitious
• unsmiling
• untoward
• wan
• wearisome
• weary
• weighty