Grumble

usgb/ˈɡrʌmbl/Volume
Left Definition 1 of 3Right
LampPro Tip 1/3
Subtle discontentPlay
Used to indicate a mild or repressed annoyance without confrontation. SlideShe grumbled about the cold office but didn't request a heater.
LampPro Tip 2/3
Not DirectlyPlay
Expressing complaints indirectly, without addressing someone specifically. SlideWalking away from the meeting, Jonah grumbled about the decision.
LampPro Tip 3/3
Low VolumePlay
Grumbling is not loud; it's quiet and may not be fully audible to others. SlideHe grumbled to himself about the homework load.