Answer:

muter

Answer	Crossword Clue
MUTER	Remote control, at times
MUTER	Silencer
MUTER	Not as loud

MUTER	More muffled.
MUTER	More silent.
MUTER	More unresponsive.
MUTER	More inexpressive
MUTER	Deadening device
MUTER	Less apt to speak
MUTER	More silent
MUTER	More taciturn

MUTER	Less talkative

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.