Silent

Free from sound or noise; absolutely still; perfectly quiet.

Not speaking; indisposed to talk; speechless; mute; taciturn; not loquacious; not talkative.

Keeping at rest; inactive; calm; undisturbed; as, the wind is silent.

Not pronounced; having no sound; quiescent; as, e is silent in "fable."

Having no effect; not operating; inefficient.

That which is silent; a time of silence.

expressed without speech; "a mute appeal"; "a silent curse"; "best grief is tongueless" - Emily Dickinson; "the words stopped at her lips unsounded"; "unspoken grief"; "choking exasperation and wordless shame" - Thomas Wolfe