Sara is semiconscious, muttering unintelligibly through bruised lips which are shiny with blood.
"Oh, it doesn't..." the observer began, but broke off, muttering unintelligibly at intervals; then swung the visiray beam toward the Earth.
Letelier's head was rolling back and forth, his eyes moved slightly, and he muttered unintelligibly.
Rababa, Schoenberg answered, is what a director tells a crowd of actors to say when they have to mutter unintelligibly.
His lips moved and he occasionally muttered unintelligibly in his enthusiasm.
Throwing up his hands, Nual started up the bank, muttering unintelligibly as he walked, seemingly unconcerned that the Doctor wasn't behind him.
Muttering unintelligibly is probably just a side effect.
The janitor muttered unintelligibly and turned to leave the art room, when to Clare's horror Sean called him back.
Some shook their heads, some others muttered unintelligibly, most of them answering with stoic silence.
Treesa began to stir, muttering unintelligibly under her breath.