1.Definition: (of a body of water) free from disturbance by heavy waves
"The quiet waters of a lagoon"
2.Definition: (of the sun) characterized by a low level of surface phenomena, such as sunspots
3.Definition: 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"
4.Definition: free of noise or uproar; or making little if any sound
"A quiet audience at the concert", "The room was dark and quiet"
6.Definition: not showy or obtrusive
"Clothes in quiet good taste"