not saying boo

buttoned-up clammed up close close-mouthed could hear a pin drop dumb hushed hushful inaudible low low-pitched muffled mute muted noiseless peaceful quiescent quieted reserved restrained reticent secretive silent soft soundless speechless still stilled subdued taciturn tasteful tight-lipped uncommunicative unexpressed unobtrusive unspeaking unuttered whist

muted peaceful reticent silent soft

close hushed low muffled mute quieted reserved still stilled whist

buttoned-up clammed up close-mouthed could hear a pin drop dumb hushful inaudible low-pitched noiseless quiescent secretive soundless speechless taciturn tight-lipped uncommunicative unexpressed unspeaking unuttered

clamorous communicative noisy

unreserved

agitated boisterous complex complicated intricate loud obtrusive troubled

amazed dazed dumb silent

aghast aphonic astounded buttoned-up clammed up close-mouthed cool cool as cucumber dumbfounded dumbstruck inarticulate mum mute reserved shocked taciturn thunderstruck tight-lipped tongue-tied uncommunicative unflappable voiceless wordless

articulate communicative responsive