bickerer

/ˈbɪkərər/
noun
  1. A person who argues about small, unimportant things.
    • Don't be a bickerer — let's just enjoy the party.
    • The office bickerer always finds something to complain about.
    • My brother is such a bickerer; he'll fight over anything.
Antonyms
What does "bickerer" mean? | whatsthatwordmean | whatsthatwordmean