aberration, abomination, abrasion, adversary, adversity, beset, choke, chronic, clash, contest, convulse, debacle, defile, degenerative, derogatory, desperate, devastate, disfigure, disoriented, dispute, disrupt, dissertation, disturbed, dogged, doldrums, drudge, elude, enigma, exigent, frail, frustrated, grievous, grueling, harrow, imbroglio, impotent, incursion, insolvent, insomnia, mediate, relocate, reproach, resurgent, rickety, rigor, satirical, sortie, squalid, strife, stump, succumb, suffer, surmount, toil, undeveloped, unethical, uneven, unfathomable, unfortunate, unhinged, unrelenting, vertigo, zoophobia