gone quiet
- silentProducing no sound
- hushedReduced to silence
- stillUnmoving, or continuing
- mutedMade quieter or softer
- subduedReduced in intensity
withdrawn · distant · faded · vanished · disappeared · stopped · paused · retreated · ghosted · unresponsive · radio silence · crickets · hush · lull · calm · eerie · absent · missing
communication activity
gone quietspoken up
Expressed oneself audibly
opened up · reached out · piped up · come forward · chimed in
activity/energy level
gone quietcome alive
Become vibrant suddenly
come to life · heated up · picked up · gotten busy · kicked off