mut ‧ ed /ˈmjuːtəd, ˈmjuːtɪd/ BrE AmE adjective [usually before noun]
1 . muted sounds, voices etc are quieter than usual SYN subdued :
Everyone was sitting round discussing the accident in muted voices.
2 . a muted reaction to something is not expressed strongly:
There was muted agreement from most of the people in the room.
The speech received only a muted response from the unions.
3 . a muted colour or light is soft and gentle, not bright:
muted pinks and blues
4 . a muted musical instrument has been made to sound softer