acedia
aloofness
angst
anguish
anxiety
apathy
boredness
carelessness
cheerlessness
detachment
discomfort
discomposure
discontent
disgust
disinterest
disinterestedness
dislike
dispiritedness
displeasure
disquiet
dissatisfaction
distaste
doldrums
dread
dreariness
drowsiness
dullness
emptiness
enervation
ennui
existential woe
fatigue
fed-upness
flatness
grimness
heaviness
hebetude
heedlessness
impassiveness
impassivity
inanimation
incuriosity
incuriousness
indifference
indifferentism
indifferentness
inquietude
insouciance
intellectual inertia
blahs
bored
boring
dejection
desperation
disbelief
exasperation
exhaustion
hopelessness
humiliation
loathe
loneliness
monotony
restlessness
unhappiness
vexation
weariness