RichThesaurus
complainer
complainer
synonyms
moaner
grumbler
whiner
bellyacher
crybaby
carper
sniveller
wet blanket
grouch
sourpuss
prophet of doom
squawker
party pooper
fault-finder
pessimist
killjoy
misery
kvetch
grump
whinger
shrew
mope
discontent
dog in the manger
grouser
spoilsport
dampener
doom merchant
sorehead
critic
melancholiac
damper
crosspatch
malcontent
curmudgeon
nagger
troublemaker
griper
dissentient
nag
kvetcher
termagant
quibbler
harpy
disruptor
misanthrope
nitpicker
downer
worrier
defeatist
more synonyms
complainer
antonyms
praiser
noncomplainer
optimist
complimenter