placid   (Sound)

The adj placid has 2 senses

• 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")


• equable, even-tempered, good-tempered, placid -- (not easily irritated; "an equable temper"; "not everyone shared his placid temperament"; "remained placid despite the repeated delays")