The Oxford Thesaurus An A-Z Dictionary of Synonyms - quiet adj.

1) silent, soundless, noiseless, hushed, still: We have to be very quiet so as not to wake the children. 2) still, serene, silent, peaceful, unperturbed, calm, tranquil, placid, pacific, smooth, mild, restful, unagitated: The sea was very quiet as we rowed towards the beach. 3) dormant, quiescent, inactive, retired, withdrawn, unobtrusive: His last days were spent living a quiet life in the Outer Hebrides. 4) still, motionless, unmoving, fixed, stationary, at rest, inactive, composed, temperate, unexcited, calm: There was a knock at the door and everyone suddenly became quiet. --n. 5) silence, stillness, soundlessness, noiselessness, hush, quietness, quietude, ease, rest, calmness, serenity, tranquillity, peace, peace of mind, repose: In the quiet of the cave I could hear my heart beating. --v. 6) See quieten, below.