To be: mute, dumb, muted, speechless, uncommunicative, wordless, inarticulate, tongue-tie, nonvocal, voiceless, dumbstruck, sulking, sullen, close-mouthed, aloof, reserved, tight-lipped, withdrawn, restrained, hushed, noiseless, quiet, soundless. And then it is still.
Namaste, my friends.