Synonyms and related words :
Spartan, accepting, accommodating, acquiescent, apoplectic, armed with patience, arthritic, assiduous, benevolent, bovine, case, charitable, clement, compassionate, compliant, conciliatory, constant, consumptive, continuing, determined, diligent, disciplined, dispassionate, dogged, dull, dyspeptic, easy, easygoing, endurant, enduring, epileptic, even-tempered, faithful, firm, forbearant, forbearing, forgiving, generous, gentle, guinea pig, humane, immutable, impassive, imperturbable, inalterable, incurable, indefatigable, indomitable, indulgent, industrious, inexcitable, inirritable, inpatient, insistent, invalid, invincible, kind, laboratory animal, lasting, lax, lenient, long-suffering, longanimous, loyal, magnanimous, merciful, mild, moderate, never-tiring, obstinate, outpatient, passive, patient as Job, permanent, perseverant, persevering, persistent, persisting, pertinacious, philosophical, placable, plodding, plugging, preoccupied, rapt, relentless, resigned, resolute, resolved, rheumatic, sedulous, self-controlled, self-possessed, serene, shut-in, sick person, single-minded, sleepless, slogging, soft, sparing, spastic, stable, staunch, steadfast, steady, stoic, stoical, stolid, stubborn, subject, submissive, sufferer, tenacious, tender, terminal case, testee, the sick, tireless, tolerant, tolerating, tolerative, unabating, unconquerable, undaunted, understanding, undiscouraged, undisturbable, undrooping, unfailing, unfaltering, unflagging, unflappable, unflinching, unintermitting, uninterrupted, unirritable, unnervous, unnodding, unpassionate, unrelaxing, unrelenting, unremitting, unresentful, unrevengeful, unsleeping, unswerving, untiring, unwavering, unwearied, unwearying, unwinking, unyielding, utterly attentive, valetudinarian, weariless