silent
(adj) : Free from sound or noise; absolutely still; perfectly quiet; not speaking; indisposed to talk; speechless; mute; taciturn; not loquacious; not talkative
"ulysses, adds he, was the most eloquent and most silent of men. Broome."
(n) : that which is silent; a time of silence
"the silent of the night. Shakespeare"
synonyms: mute, taciturn, dumb more», speechless, quiet, still