inconversable

muted

checked close curbed faint hush iced inhibited mute

bashful buttoned-up clammed up closed-up closemouthed dumb dummied up inarticulate incoherent indistinct laconic mousy mum noiseless nonvocal not talkativ

bold

hushed mum mute restrained reticent

bashful buttoned-up checked clammed up close closed-up closemouthed curbed dumb dummied up faint hush iced inarticulate incoherent indistinct inhibited laconic mousy muted noiseless nonvocal not talkative reserved shy silentious soundless still struck dumb taciturn tongue-tied unclear uncommunicative unheard unsociable unspeaking voiceless wordless zipped

clamorous communicative explicit noisy talkative tangible