Synonyms for Grinches:

• n.

  •killjoy (noun)
  • moaner,
  • wet blanket,
  • prophet of doom,
  • pessimist,
  • grouch,
  • GRINCH,
  • dampener,
  • whiner,
  • doomsdayer,
  • complainer,
  • partypooper,
  • stick in the mud.
  •party pooper (noun)
  • drip,
  • fuddy-duddy,
  • stick-in-the-mud.
  •wet blanket (noun)
  • drag,
  • malcontent,
  • Proser,
  • killjoy,
  • downer,
  • spoilsport,
  • sourpuss,
  • party pooper,
  • Marplot,
  • damper,
  • poor sport,
  • cold water.

Antonyms for Grinches:

• n.

  • party pooper
    celebrator, live wire, life of the party.