Herculean, agitated, all-overish, anxious, anxioused up, apprehensive, arduous, artificial, awkward, backbreaking, biased, bothered, burdensome, chill, chilly, cold, concerned, cooked, cool, crushing, difficult, disaccordant, disquieted, distant, disturbed, doctored, dragged out, drawn, drawn out, effortful, elongated, extended, farfetched, fearful, forced, foreboding, frosty, garbled, grueling, hard-earned, hard-fought, heavy, hefty, icy, improbable, in a pucker, in a stew, incompatible, inhospitable, inimical, insincere, killing, labored, laborious, lengthened, misgiving, misquoted, misrepresented, nervous, on tenterhooks, onerous, operose, oppressive, out-of-the-way, overanxious, overapprehensive, painful, perturbed, perverted, prolongated, prolonged, protracted, pulled, punishing, put-on, quite another thing, remote, self-conscious, slanted, solicitous, something else again, spun out, stiff, straggling, strenuous, stretched, stretched out, stretched tight, strung out, suspenseful, taut, tense, tight, toilsome, tortured, tough, troubled, troublesome, twisted, unamiable, unamicable, uncomfortable, uncordial, under a strain, uneasy, unfriendly, ungenial, unharmonious, unnatural, unrelaxed, unsociable, uphill, uptight, wearisome, zealous