Low in intensity; restrained (5)
I believe the answer is:
muted
(Other definitions for muted that I've seen before include "Quiet or muffled" , "Faint" , "Not loud" , "Piano" , "In a softened tone" .)
I believe the answer is:
muted
(Other definitions for muted that I've seen before include "Quiet or muffled" , "Faint" , "Not loud" , "Piano" , "In a softened tone" .)