complainer, grumbler, grouser, grouch, whiner, bellyacher, griper, moaner, whinger, discontent, carper, kvetch, beefer, nitpicker, protester, fault-finder, sourpuss, grump, crank, curmudgeon, growler, bear, crab, crosspatch, murmurer, mutterer, fusser, croaker, sorehead, faultfinder, bug, kicker, misery, pessimist, wet blanket, party pooper, prophet of doom, doom merchant, bear with a sore head, groaner, churl, moper, cranky person, kvetcher, bad-tempered person, old trout, miserable person, grumpy person, damper, mope … more

complainers, grumblers, grousers, grouches, whiners, bellyachers, gripers, moaners, whingers, discontent, carpers, kvetches, beefers, nitpickers, protesters, growlers, grumps, crabs, curmudgeons, sourpusses, murmurers, cranks, mutterers, bears, crosspatches, croakers, sorehead, fussers, bugs, faultfinders, kickers, misery, pessimists, wet blankets, prophets of doom, party poopers, groaners, churls, mopers, kvetchers, mopes, shrews, jade, dampeners, melancholiacs, viragos, dampers, spoilsports, objectors, naggers … more