sourpuss
noun
[ ˈsaʊəpʊs ]
• a bad-tempered or habitually sullen person.
Similar:
misery,
mope,
dog in the manger,
damper,
dampener,
spoilsport,
pessimist,
prophet of doom,
shrew,
curmudgeon,
discontent,
complainer,
grumbler,
moaner,
fault-finder,
carper,
crank,
crosspatch,
grouch,
grump,
virago,
grouser,
wet blanket,
party pooper,
doom merchant,
whinger,
kvetch,
jade,
melancholiac,
Origin:
1930s (originally US): from sour + puss2.