cynical
Cassandra
Eeyore
Thersites
backbiter
belittler
calamity howler
calumniator
captious
caustic critic
currish
debunker
decrier
defamer
defeatist
deflater
depreciator
derogator
detractor
disparager
hatchet man
killjoy
knocker
libeler
malist
man-hater
misanthrope
misanthropist
misogynist
muckraker
mudslinger
negativist
nihilist
pessimist
prophet of doom
railer
retreatist
seek-sorrow
sexist
slanderer
snarler
snarling
social critic
traducer
woman-hater
worrywart
philosopher
cynicism
agnostic
coward
coxcomb
doubter
egoist
humbug
humorist
idealist
miser
optimist
rake
realist
reprobate
satirist
scoffer
sentimentalist
skeptic
skeptics
clinic
monoclinic