dull
lacklustre
absence of color
achromatic
achromaticity
achromatism
achromic
anemic
ashen
ashy
betwixt and between
bled white
blind
bloodless
bore
cadaverous
chloranemic
colorless
colorlessness
dead
deadened
deadly pale
deathly pale
dim
dimmed
dingy
discolored
drab
dullness
etiolated
exsanguinated
exsanguine
exsanguineous
faded
faint
fair
fair to middling
fairish
fairishness
fallow
flat
ghastly
gray
haggard
hueless
huelessness
hypochromic
indifference
indifferent
insipid
anti-climactic
co-option
doltish
hard-to-find
mediocre
middle-management
out-of-sample
parti-colored
penetrative
purple-black
record-breaking
reformers'
remunerative
standout
stodgy
thebus
thickish
top-notch
unexciting
unimpressive
unmarketable
unpublishable
unremarkable
withroyal