murmurer
/ˈmɜrmərər/
noun
- A person who speaks softly or indistinctly, often in a complaining or grumbling way.
- The old murmurer sat in the corner, complaining about the weather.
- The teacher ignored the murmurer at the back of the class.
- She was known as a murmurer, always finding something to grumble about.
Synonyms