quiet -
free of noise or uproar; or making little if any sound; "a quiet audience at the concert"; "the room was dark and quiet"
noisy attracting attention by showiness or bright colors; "a noisy sweater"
inaudible,
unhearable impossible to hear; imperceptible by the ear; "an inaudible conversation"
soft not brilliant or glaring; "the moon cast soft shadows"; "soft pastel colors"; "subdued lighting"
noiseless making no sound; "th' inaudible and noiseless foot of time"- Shakespeare
soundless,
silent,
still having a frequency below or above the range of human audibility; "a silent dog whistle"
stilly (poetic) still or calm; "in the stilly night"
quiet -
characterized by an absence or near absence of agitation or activity; "a quiet life"; "a quiet throng of onlookers"; "quiet peace-loving people"; "the factions remained quiet for almost 10 years"
unquiet characterized by unrest or disorder; "unquiet days of riots"; "following the assassination of Martin Luter King ours was an unquiet nation"; "spent an unquiet night tossing and turning"
peaceful,
peaceable not disturbed by strife or turmoil or war; "a peaceful nation"; "peaceful times"; "a far from peaceful Christmas"; "peaceful sleep"
quiet -
(of a body of water) free from disturbance by heavy waves; "a ribbon of sand between the angry sea and the placid bay"; "the quiet waters of a lagoon"; "a lake of tranquil blue water reflecting a tranquil blue sky"; "a smooth channel crossing"; "scarcely a ripple on the still water"; "unruffled water"
