dejected
abashed
ashamed
baffled
balked
betrayed
bilked
blasted
blighted
blue
blushing
brooding
broody
chagrined
chapfallen
cowed
crossed
crushed
dashed
defeated
depessed
depressed
despondent
disappointed
dished
disillusioned
dissatisfied
down in the dumps
downcast
dumpish
embarrassed
foiled
frustrated
glum
grum
hangdog
humbled
humiliated
ill done-by
ill-served
let down
long-faced
moodish
moody
mopey
moping
mopish
morose
apologetic
averse
bemused
contrite
daze
discomfit
disheveled
dumbfounded
indisposed
lugubrious
perplex
perturb
sadden
sheepish
sorrowful
sulky
uninterested
unremarkable