kvetcher

/ˈkvɛtʃər/
noun
  1. A person who complains a lot, often about small things.
    • Don't be such a kvetcher — the soup is fine.
    • My uncle is a kvetcher who always finds something wrong.
    • The office kvetcher complained about the temperature again.
Antonyms
What does "kvetcher" mean? | whatsthatwordmean | whatsthatwordmean