audible Antonyms

inaudible silent quiet silentious soundless speechless still stilled turbid unconspicuous unheard muffled shrouded secretive quiescent perdu occulted noiseless muzzled muffler unobtrusive unseen vague tightlipped unarticulate unexpressed unhearable unsounded as quiet as a mouse as quiet as the grave as silent as the grave hushful unclear undetectable voiceless whist lens cap low-pitched nonvisual unuttered clear as mud could hear a pin drop clammed up moult ambiguous cryptic depressed despicable dim disguised