Synonyms and related words :
at peace, at rest, blank, blankminded, bloodless, calm, cloistered, collected, composed, concordant, cool, coolheaded, dispassionate, dwindling, easy, easygoing, ebbing, empty, empty-headed, equable, even, even-tempered, even-tenored, fatuous, halcyon, hushed, idyllic, impassive, inane, incogitant, irenic, isolated, levelheaded, moldering, nirvanic, oblivious, orderly, pacific, passive, pastoral, peaceable, peaceful, peacetime, philosophical, piping, placid, poised, possessed, quiescent, quiet, quietistic, regular, relaxed, reposeful, reposing, restful, resting, secluded, sedate, self-controlled, self-possessed, sequestered, sequestrated, serene, sheltered, smooth, soft, stable, steady, still, still as death, stillish, stilly, stoic, stolid, subsiding, thoughtfree, thoughtless, unagitated, undisturbed, unexcited, unideaed, unintellectual, unmoved, unoccupied, unperturbed, unreasoning, unruffled, unstirring, unthinking, untroubled, vacant, vacuous, waning