Synonyms and related words :
Laodicean, Olympian, Spartan, accepting, aloof, apathetic, armed with patience, at rest, benumbed, blah, blase, bovine, calm, cloistered, comatose, cool, desensitized, detached, disciplined, disinterested, dispassionate, dull, dwindling, ebbing, endurant, enduring, even-tempered, even-tenored, forbearing, halcyon, heartless, hebetudinous, hopeless, hushed, impassive, imperturbable, in a stupor, indifferent, indulgent, inexcitable, inirritable, insouciant, isolated, languid, lenient, lethargic, listless, long-suffering, longanimous, man of iron, moldering, nonchalant, numb, numbed, pacific, passive, patient, patient as Job, peaceable, peaceful, persevering, philosophical, phlegmatic, placid, pluckless, quiescent, quiet, reposeful, reposing, resigned, restful, resting, secluded, self-controlled, sequestered, sequestrated, sheltered, slack, sluggish, smooth, soporific, spiritless, spunkless, steady, still, still as death, stillish, stilly, stolid, stupefied, subsiding, supine, tolerant, tolerating, tolerative, torpid, tranquil, unagitated, uncaring, unconcerned, understanding, undisturbable, undisturbed, unflappable, uninterested, unirritable, unmoved, unnervous, unpassionate, unperturbed, unruffled, unstirring, untroubled, waning, withdrawn