0 present participle of mumble
1 to speak quietly and in a way that is not clear so that the words are difficult to understand:
She mumbled something about being too busy.
[ + speech ] "I'm sorry," he mumbled.
A lot of the producers would be mumbling amongst themselves, trying to find a solution to a problem.
Some communication difficulties were attributed to the conversational partner mumbling their words or not being able to communicate with a person who has a sensory loss.
It is regarded as an impertinence to suggest that he cannot be heard from the back row because he is mumbling into his notes.
One little child of four recited with a diction which some of us might envy when mumbling our speeches.
One of them was waving an indecipherable piece of paper at him while at the same time mumbling all sorts of incomprehensible phrases.
We can hear them mumbling because it is getting through to them.
He has been mumbling away since the debate commenced.
He is mumbling and speaking too fast because he does not want us to hear what he is saying.
