abruptness
absence of color
acedia
achromaticity
achromatism
adynamia
aloofness
analgesia
anemia
anesthesia
angst
anguish
anxiety
apathy
aridity
aridness
ashiness
asininity
ataraxia
ataraxy
atony
autism
barrenness
benumbedness
blah
blah feeling
blahs
blockishness
bloodlessness
bluffness
bluntness
boobishness
boorishness
boredom
boringness
bovinity
cachexia
cachexy
cadaverousness
callousness
canescence
catatonia
cheerlessness
chill
chilliness
chloranemia
cloddishness
cold blood
dulness
callosity
hardness
insensibility
unfeelingness
awkwardness
dreariness
ennui
feebleness
heaviness
inactivity
inattention
languor
laziness
lethargy
monotony
narrowness
numbness
sluggishness
stagnation
stupidity
torpor
ugliness
weariness