Silent

a.	1.	Free from sound or noise; absolutely still; perfectly quiet. How silent is this town! - Shak.
	2.	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. This new-created world, whereof in hell Fame is not silent. - Milton.
	3.	Keeping at rest; inactive; calm; undisturbed; as, the wind is silent.
	4.	(Pron.) Not pronounced; having no sound; quiescent; as, e is silent in "fable."
	5.	Having no effect; not operating; inefficient. Cause . . . silent, virtueless, and dead. - Sir W. Raleigh. Silent partner See Dormant partner, under Dormant.
n.	1.	That which is silent; a time of silence.

Adj.	1.	silent - marked by absence of sound; "a silent house"; "soundless footsteps on the grass"; "the night was still" Synonyms: soundless, still
	2.	silent - failing to speak or communicate etc when expected to; "the witness remained silent" Synonyms: mum
	3.	silent - indicated by necessary connotation though not expressed directly; "gave silent consent"; "a tacit agreement"; "the understood provisos of a custody agreement" Synonyms: implied, tacit, understood
	4.	silent - not made to sound; "the silent `h' at the beginning of `honor'"; "in French certain letters are often unsounded" Synonyms: unsounded
	5.	silent - having a frequency below or above the range of human audibility; "a silent dog whistle"
	6.	silent - unable to speak because of hereditary deafness Synonyms: mute, dumb

aphonic, brief, brusque, checked, close, close-lipped, close-tongued, closemouthed, concise, curbed, curt, echoless, economical of words, hush as death, implicit, implied, inactive, inarticulate, inaudible, incoherent, indisposed to talk, inhibited, laconic, mousy, mum, muted, pacific, passive, placid, quiescent, reserved, restrained, reticent, secretive, serene, short, sleeping, snug, sparing of words, still as death, stilly, subaudible, tacit, taciturn, terse, tight-lipped, tongue-tied, unagitated, unarticulated, undeclared, understood, undisturbed, unexpressed, unhearable, unloquacious, unmentioned, unproclaimed, unpronounced, unpublished, unrecorded, unruffled, unsaid, unsociable, unsounded, unspoken, unstated, unsung, untalkative, untalked-of, untold, untroubled, unuttered, unvocalized, unvoiced, unwritten, voiceless, whist, word-bound, wordless