prolonged, lengthy, acrimonious, tortuous, rancorous, internecine, bitter, yearlong, messy, contentious, interminable, arduous, ongoing, painful, fruitless, monthlong, torturous, intense, laborious, agonizing, tumultuous, stormy, inevitable, costly, ruinous, fractious, tedious, unending, bloody, exhausting, stalemated, complicated, intractable, grueling, fierce, divisive, wrenching, irresolvable, unedifying, tense, painstaking, fitful, turbulent, brief, heated, futile, tempestuous, convoluted, excruciating, wearisome, frustrating, long, unsettled, litigious, civil, fratricidal, disastrous, great schism, inglorious, enduring, vigorous, stalled, unseemly, unresolved, pyrrhic, adversarial, debilitating, unresolvable, unfruitful, unpleasant, sisyphean, knottiest, testy, abrupt, nasty, subsequent, persistent, tiresome, inconclusive, perilous, evitable, farcical, perpetual, stressful, intensive, feverish, frenzied, exhaustive, titanic, difficult, recriminatory, hellish, pyrrhic victory, thorny, recurring decimal, likely, weeklong, factional, brutal, epic, climactic, trench warfare, lengthened, longcontinued, desultory, publicized, fought, pointless

drawn-out, extended, lengthy, prolonged