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v. Present participle of mumble.

n. An act in which someone mumbles something

adj. Low; indistinct; inarticulate.

n. The act of speaking in a low tone or with the vocal organs partly closed; an indistinct utterance.

n. ineffectual chewing (as if without teeth)

n. indistinct enunciation

"Even though Science is moving rapidly forward always keep one eye on the mumbling from the shadows."

manduction    chewing    chew    mastication    diction    enunciation   

low    indistinct    inarticulate   

mumble   

bumbling    crumbling    fumbling    grumbling    humbling    rumbling    stumbling    tumbling