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")
quiet -- (free of noise or uproar; or making little if any sound; "a quiet audience at the concert"; "the room was dark and quiet")
quiet, restrained -- (not showy or obtrusive; "clothes in quiet good taste")
hushed, muted, subdued, quiet -- (in a softened tone; "hushed voices"; "muted trumpets"; "a subdued whisper"; "a quiet reprimand")
placid, quiet, still, tranquil, smooth, unruffled -- ((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")
quiet -- (of the sun characterized by a low level of surface phenomena like sunspots e.g.)
Overview of adv quiet
The adv quiet has 1 sense
quietly, quiet -- (with little or no activity or no agitation (`quiet' is a nonstandard variant for `quietly'); "her hands rested quietly in her lap"; "the rock star was quietly led out the back door"; "sit here as quiet as you can")