Her mutterance barely reached him over the roar of the crowd.

Her mutterances were barely audible over the hum of the refrigerator.

She tried to ignore the mutterings from the crowd as she walked onto the stage.

She mutters a quick apology before turning away.

At the staff meeting, the mutters grew into a chorus of complaints.

At the food festival, I tried mutter paneer for the first time and loved its creamy, spiced sauce.

He mutteringly complained about the service, not wanting to cause a scene.

When thou mutterest under thy breath, others may think thou art angry.

At the mention of the king's name, the servant muttereth a hurried apology.