obsidian
ebony
India-inky
mela-
pitchy
batho-
jet black
coal black
soot black
blackish
pitch black
sable
nigrous
ebon
swart
nigritude
semideep
deepish
superdeep
dark as the inside of a cow
nigritudinous
outer space
murk
bottomless
Black Plague
atrament
midnight
nielle
swarthy
black as a dog's guts
black as the ace of spades
tenebrose
black as night
blackberry
blacksome
blackish-gray
black-gray
black-grey
blackish-grey
deep-seated
shadowy
blacklettered
ultradeep
bowel
nigrescent
fathomly
jet-black
African-American
nigricant
scraber
tystie
slate black
pitch
plummetless
infuscate
sooty
cavernous
jet
deepmost
sloebush
coal-black
pitch-dark
merle
charcoal
charcoal-gray
buckwheat
niggership
phytomelanin
chocolate
charcoal-grey
overdeep
nigrescence
undeep
subclump
nondeep
dark magic
cavern
chanate
blackishness
blacken
unsoundable
cabre
black as Newgate's knocker
milky
weiselbergite
Blacky
Zwarte Piet
dusk