Quiet  —adj. 1 with little or no sound or motion. 2 of gentle or peaceful disposition. 3 unobtrusive; not showy. 4 not overt; disguised. 5 undisturbed, uninterrupted; free or far from vigorous action. 6 informal (quiet wedding). 7 enjoyed in quiet (quiet smoke). 8 not anxious or remorseful. 9 not busy (it is very quiet at work). 10 peaceful (all quiet on the frontier). —n. 1 silence; stillness. 2 undisturbed state; tranquillity. —v. (often foll. By down) make or become quiet or calm.  be quiet (esp. In imper.) Cease talking etc.