| clammed up(expression, adjective, silent, dazed, dumb) |
| clear(adjective, smooth, comfortable) |
| close-mouthed(adjective, silent, dazed, dumb, astonished) |
| cold sober(expression, adjective, calm, quiet, cool) |
| comfortable(adjective, smooth, relieved, anesthetized, disimpassioned) |
| content(adjective, smooth, comfortable) |
| cool as a cucumber(expression, adjective, idiom, mild) |
| could hear a pin drop(expression, idiom, silenced, whist, disimpassioned) |
| dazed(adjective, silent, dumb, amazed, astonished) |
| decorous(adjective, calm, quiet, cool, sober) |
| deliberate(adjective, calm, quiet, cool, sober) |
| demure(adjective, calm, quiet, cool, sober) |
| dignified(adjective, calm, quiet, cool, sober) |
| discreet(adjective, calm, reasonable, sensible, rational) |
| dry(adjective, calm, cool, indifferent, philosophic) |
| dumb(adjective, silent, dazed, astonished, thunderstruck) |
| dumbfounded(adjective, silent, dazed, dumb, amazed) |
| dumbstruck(adjective, silent, dazed, dumb, amazed) |
| earnest(adjective, calm, quiet, cool, sober) |
| enduring(adjective, calm, cool, restrained, patient) |