Also the ostentatious absence of the front tooth, clearly accounting for inaudibility at a distance.
Mouths gaped their very widest to make up for the inaudibility of the cheers.
His voice fell to inaudibility; the welcome silence left me alone with the little picture.
She lowered her voice to inaudibility, she raised it to shrieks and wails.
Mary's voice had sunken almost to inaudibility; the cracking of the twigs under their feet all but drowned its sound.
The voice sank into inaudibility and Rob threw himself back on the bunk.
Mrs. Nightingale paused with a listening eye, trying to disprove their inaudibility.