Grumbling
/ˈɡrʌmblɪŋ/
Synonyms
- muttering
- complaining
- griping
- groaning
- moaning
Slang Meanings
Whining or complaining about something trivial.
Stop grumbling about the weather; it won't change anything.
Expressing discontent in a casual or humorous way.
He always grumbles when it's time to do chores, but we know he secretly loves helping out.