Synonyms and related words :
at peace, bloodless, bucolic, calm, clear, cloudless, collected, composed, concordant, cool, coolheaded, diaphanous, dispassionate, easy, easygoing, equable, even, even-tempered, halcyon, idyllic, imperturbable, levelheaded, light, lightish, lightsome, lucent, lucid, luculent, noiseless, nonchalant, orderly, pacific, pastoral, peaceable, peaceful, peacetime, pellucid, philosophical, piping, placid, poised, quiescent, quiet, relucent, reposeful, restful, resting, self-possessed, soft, still, temperate, tranquil, translucent, translucid, transparent, unclouded, undisturbed, unexcitable, unflappable, unobscured, unperturbed, unruffled, untroubled