Quiet

a period of calm weather

an untroubled state

the absence of sound

a disposition free from stress or emotion

become quiet or quieter

make calm or still

characterized by an absence or near absence of agitation or activity

free of noise or uproar

not showy or obtrusive

in a softened tone

(of a body of water) free from disturbance by heavy waves

(of the sun) characterized by a low level of surface phenomena, such as sunspots

with little or no activity or no agitation (`quiet' is a nonstandard variant for `quietly')