dogged

acid, vinegary, angry, grumpy, moody, morose, sullen, petulant, crabbed, dogged, gloomy, sulky, ill-humored, chuffy, rusty, mulish, gruff, huffy, humpy, pettish, huffish, ill-humoured, ill-natured, snuffy, vinegarish

adamant, dogged, obstinate

firm, hard, rigid, serious, solid, difficult, stringent, laborious, dogged, adamantine, tough, strict, strong, sticky, troublesome, exquisite, chronic, heavy, formidable, grim, demanding, arduous, ironclad, indomitable, austere, exacting, severe, stout, rugged, grave, intense, violent, callous, inexorable, trenchant, tense, crusty, difficile, trying, dour, intolerable, flinty, stony, petrous, hard-shell, irresistible, insupportable, inflexible, insufferable, labored, steely, rigorous, rocky, unsparing

headstrong, dogged, obstinate, tough, tenacious, vivid, vivacious, stubborn, recalcitrant, hardy, enduring, bull-headed, pigheaded, froward, die-hard, refractory, hard-bitten, hard-fought, incompliant, nine-lived, renitent, self-opinionated, stiff-necked, subsistent

persistent, opinionated, dogged, obstinate, set, stubborn, stuffy, intractable, obstreperous, pertinacious, mulish, obdurate, dour, irrefragable, waspish