silent

adjectives

marked by absence of sound
"a silent house"; "soundless footsteps on the grass"; "the night was still"
is derived from
is derived from
failing to speak or communicate etc when expected to
"the witness remained silent"
is derived from
implied by or inferred from actions or statements
"gave silent consent"; "a tacit agreement"; "the understood provisos of a custody agreement"
not made to sound
"the silent `h' at the beginning of `honor'"; "in French certain letters are often unsounded"
having a frequency below or above the range of human audibility
"a silent dog whistle"
is similar to
impossible to hear; imperceptible by the ear
"an inaudible conversation"
unable to speak because of hereditary deafness