Yes. Still is a synonym for Silent.
The synonym of mute is silent or speechless.
quiet
Quiet, hushed, noiseless.
noiseless, quiet, silent
quiet silent and it goes on
A synonym for "reverberating" is echoing. An antonym for "reverberating" is quieting. Please see the related link below.
aghast....taken aback....tight-lipped...
Synonym for the word still: Stable
still
"still" and stille nacht
still
Synonym: Cringed, Shake Antonym: Shivered, Still & Brave