bugbear, boon, hindrance, cripples, bugaboo, mainstay, sine qua non, godsend, anathema, nightmare, plague, blights, staple, impediment, saving grace, scourge, achilles heel, byword, thorn, hinderance, de rigueur, stumbling block, dooms, panacea, occupational hazard, whipping boy, pet peeve, commonplace, curse, watchword, eradicator, holy grail, recurring decimal, saps, hallmark, bedeviling, bain, haunt, buzzword, detriment, irritant, alack, retarding, misnomer, epitome, drawback, riles, ills, lingua franca, rues, whackers, obstacle, bringers, beleaguering, oxymoron, malaises, dogging, pesky, baffles, irk, cause celebre, menace, doyen, hampers, faddists, synonym, catchword, angers, peeves, clubbish, death knell, cankerworm, nagging, linchpin, harbingers, vogue, immemorial, taints, pesty, annoyances, headaches, stinks, antediluvian, finks, paramount, perennial, downfalls, unkindest, laments, mires, culprit, albatross, saviors, riddance, bogeyman, causers, problem, kookiest, euphemism, vexation, darling, sacred cow, nemesis, affliction, danger, disgrace, evil, peril, sin, want, misery, grudge, perils, tribulations, grievance, heartache, temptation, woe, berry, bramble, ceremonious, crow, dubious, eagle, eatable, factitious, fingular, fluffy, goose, higheft, highest, invidious, irreproachable, jaunty, lightest, mul, nicest, of

doronicum, erratic, genus doronicum