Grumbler

Pronunciation: /ˈɡɹəmbəɫˈɑɹ/

Grumbler (noun)

  1. A person who often complains in an unhappy way about small things.
  2. Someone who makes low, unhappy sounds while complaining.

Examples

  • A grumbler complains about everything, even small changes.
  • The grumbler never seems satisfied with the plan.