Answer: muter

AnswerCrossword Clue
MUTERMore silent
muterto deaden the sound of
muterincapable of speech
mutersilent
muterdevice for muffling a musical instrument
muterperson unable to utter words
muterMUTE, dumb (incapable of speech)
MUTERLess talkative
MUTERMore taciturn
MUTERRemote control, at times
MUTERLess apt to speak
MUTERDeadening device
MUTERMore inexpressive
MUTERMore unresponsive.
MUTERMore silent.
MUTERMore muffled.
MUTERNot as loud
MUTERSilencer