definition of
murmuring

[1] #1 murmuring n. [mutter, muttering, murmur, murmuration, mussitation] a low continuous indistinct sound; often accompanied by movement of the lips without the production of articulate speech. wn

[2] #2 murmuring n. [grumble, grumbling, murmur, mutter, muttering] a complaint uttered in a low and indistinct tone. wn