Antonyms for quiet:
wild, clamor, annoy, incite, agitation, rough, clanging, clamorous, irritate, obtrusive, disturb, noise, excite, unreserved, disturbance, confident, clanking, unquiet, aggravate, clamant, loud, noisy, presumptuous, violent, agitate, provoke, clangor, open, bold, active, boisterous, unquietly, creaky, worry, troubled, assured.
Synonyms for quiet:
cool it, simmer down, becalm.
soothe, soothing, salve.
Other synonyms and related words:
calm, peaceful (adjective)
collected, meek, halcyon, inactive, sedate, remote, motionless, undisturbed, pacific, fixed, retired, secret, placid, serene, secluded, stagnant, unruffled, gentle, tranquil, restful, isolated, untroubled, smooth, mild.
somnolent, quiescent, sedentary.
mild, moderate, tender, forbearing, meek, cordial, genial, broad-minded, lax, benign, even, peaceful, clement, liberal, libertarian, soft, tolerant, sweet, lenient, insipid, charitable, amiable, permissive, kind, peaceable, gentle, open-minded, benevolent.
simple, unobtrusive (adjective)
without or with little sound (adjective)
Sense 4 (noun)
Sense 5 (noun)
Sense 6 (noun)
Sense 7 (noun)
Sense 8 (noun)
calmness, silence (noun)
law and order.
placidness, quietness, tranquility, orderliness, quiescence, accord, nonaggression, friendliness, repose, rest, cease-fire, amity, neutrality, peace, nonresistance, order, serenity, concord, armistice, truce.
quieten, muted, soundless, hushed, pipe down, catlike, tranquillize, hush, quietly, noiseless, tiptoe, quiescent, uneventful, placidity, silent, slumbrous, relaxing, tranquility, lull, slumberous, unruffled, restrained, tranquillity, calm, still, calm down, dreamy, restful, subdued, stilly, soft, reposeful, unpretentious, silence, tranquil, tranquilize, serenity, quiesce, unostentatious, quiet down, tranquillise, repose, untroubled, placid.
make silent, calm (verb)
appease, settle, quieten, cool it, assuage, muffle, calm down, shut up, becalm, moderate, tranquilize, reconcile, silence, soften, gag, shush, allay, console, slack, dummy up, soothe, compose, mollify, muzzle, squelch, relax, subdue, pacify, clam up.