The sound was 'indistinct' [='faint'] at first, then gradually became louder.
Her voice could only be heard 'indistinctly'. [='faintly']
a far-off 'indistinct' light
(..) How the upper incisors are the first to shed. Oh, that sounds like a blast. (mouthing) (siren chirps) (indistinct radio communication) (sirens wailing) Whoa! That's one hell of a way to park a bike. HODGINS: Must've been a gnarly landing. (..)2015 TvShow: Bones Title: The Promise in the Palace Season: 11 Episode 7