Wordnet 3.0
ADJECTIVE (2)
1. (of a body of water) free from disturbance by heavy waves;
- Example: "a ribbon of sand between the angry sea and the placid bay"
- Example: "the quiet waters of a lagoon"
- Example: "a lake of tranquil blue water reflecting a tranquil blue sky"
- Example: "a smooth channel crossing"
- Example: "scarcely a ripple on the still water"
- Example: "unruffled water"
[syn: placid, quiet, still, tranquil, smooth, unruffled]
2. not easily irritated;
- Example: "an equable temper"
- Example: "not everyone shared his placid temperament"
- Example: "remained placid despite the repeated delays"
[syn: equable, even-tempered, good-tempered, placid]
The Collaborative International Dictionary of English v.0.48:
Placid \Plac"id\, a. [L. placidus, originally, pleasing, mild, from placere to please: cf. F. placide. See Please.] Pleased; contented; unruffied; undisturbed; serene; peaceful; tranquil; quiet; gentle. "That placid aspect and meek regard." --Milton. "Sleeping . . . the placid sleep of infancy." --Macaulay. [1913 Webster]Moby Thesaurus II by Grady Ward, 1.0:
75 Moby Thesaurus words for "placid": affliction, at rest, bane, besetment, bother, botheration, calm, cloistered, collected, composed, cool, coolheaded, curse, detached, disease, dwindling, easy, easygoing, ebbing, epidemic, even-tenored, exasperation, halcyon, hushed, impassive, inexcitable, infestation, invasion, irenic, irritant, isolated, moldering, nuisance, outbreak, pacific, peaceable, peaceful, pes, pest, pestilence, philosophical, plague, poised, quiescent, quiet, rash, ravage, reposeful, reposing, restful, resting, scourge, secluded, self-possessed, sequestered, sequestrated, serene, sheltered, smooth, still, still as death, stillish, stilly, stoic, stolid, subsiding, tranquil, unagitated, undisturbed, unmoved, unperturbed, unruffled, unstirring, untroubled, waning

