Answer: mutely

AnswerCrossword Clue
MUTELYIn silence
MUTELYHow Harpo performed
MUTELYWithout a word
MUTELYWithout a word.
MUTELYIn an unspeakable way
MUTELYWithout speaking
mutelyincapable of speech
mutelyMUTE, dumb (incapable of speech)
mutelyto deaden the sound of
mutelyperson unable to utter words
mutelydevice for muffling a musical instrument
mutelysilent