application, arid, assiduity, assiduous, assiduousness, banausic, barren, blah, blank, bloodless, bulldog tenacity, characterless, cold, colorless, concentration, constancy, constant, continuing, dead, diligence, diligent, dim, dismal, dogged, dogged perseverance, doggedness, draggy, drearisome, dreary, drudging, dry, dryasdust, dull, dusty, effete, elephantine, empty, endurance, enduring, engrossment, etiolated, fade, faithful, fidelity, flat, grinding, grubbing, hardworking, heavy, ho-hum, hollow, humdrum, immutable, inalterable, inane, indefatigability, indefatigable, indomitable, industrious, industriousness, industry, inexcitable, insipid, insistence, insistency, insistent, invincible, jejune, laboring, lasting, leaden, lifeless, low-spirited, loyal, loyalty, monotone, monotonous, never-tiring, obstinacy, obstinate, pale, pallid, patience, patience of Job, patient, patient as Job, pedestrian, pegging, permanence, permanent, perseverance, perseverant, persevering, persistence, persistency, persistent, persisting, pertinacious, pertinaciousness, pertinacity, plugging, pointless, poky, ponderous, preoccupation, preoccupied, rapt, relentless, relentlessness, resolute, resolution, sedulity, sedulous, sedulousness, single-minded, single-mindedness, singleness of purpose, slaving, sleepless, slogging, slow, solemn, spiritless, stability, stable, stamina, staying power, steadfast, steadfastness, steadiness, steady, sterile, stick-to-itiveness, stiff, stodgy, straining, striving, struggling, stubborn, stubbornness, stuffy, superficial, sweating, tasteless, tedious, tenacious, tenaciousness, tenacity, tireless, tirelessness, toiling, unabating, unconquerable, undaunted, undiscouraged, undrooping, unfailing, unfaltering, unflagging, unflinching, unintermitting, uninterrupted, unlively, unnodding, unrelaxing, unrelenting, unremitting, unremittingness, unsleeping, unswerving, unswerving attention, untiring, unwavering, unwearied, unwearying, unwinking, utterly attentive, vapid, weariless, wooden, working