blue
dark
dingy
disconsolate
dismal
drab
drear
dreary
gloomy
grim
melancholy
somber
sombre
sorry
Cassandra-like
Cassandran
Cassandrian
cheerless
cynical
defeatist
discontented
downbeat
humorless
in bad humor
infestive
joyless
mirthless
miserable
negative
negativistic
nihilistic
out of humor
out of sorts
pessimist
pessimistic
pleasureless
sorryish
uncheery
unhappy
unjoyful
unmirthful
unsmiling
wretched
danske
deep-voiced
emphatic
fourth-degree
heartier
mutual
otiose
stout-hearted
withroyal