stress

difficult, not easy, hard, tough; troublesome, toilsome, irksome; operose, laborious, onerous, arduous, Herculean, formidable; sooner said than done; more easily said than done., difficult to deal with, hard to deal with; ill-conditioned, crabbed; not to be handled with kid gloves, not made with rose water., awkward, unwieldy, unmanageable; intractable, stubborn (obstinate); perverse, refractory, plaguy, trying, thorny, rugged; knotted, knotty; invious; pathless, trackless; labyrinthine (convoluted); intricate, complicated (tangled); impracticable (impossible); not feasible; desperate (hopeless)., embarrassing, perplexing (uncertain); delicate, ticklish, critical; beset with difficulties, full of difficulties, surrounded by difficulties, entangled by difficulties, encompassed with difficulties.

important; of importance; momentous, material; to the point; not to be overlooked, not to be despised, not to be sneezed at; egregious; weighty (influential); of note (repute); notable, prominent, salient, signal; memorable, remarkable; unforgettable; worthy of remark, worthy of notice; never to be forgotten; stirring, eventful., grave, serious, earnest, noble, grand, solemn, impressive, commanding, imposing., urgent, pressing, critical, instant.

necessary, needful (requisite)., fated; destined; elect; spellbound., compulsory (compel); uncontrollable, inevitable, unavoidable, irresistible, irrevocable, inexorable; avoidless, resistless., involuntary, instinctive, automatic, blind, mechanical; unconscious, unwitting, unthinking; unintentional (undesigned); impulsive.

in pain, in a state of pain, full of pain; suffering; pained, afflicted, worried, displeased; aching, griped, sore (physical pain) [more]; on the rack, in limbo; between hawk and buzzard., uncomfortable, uneasy; ill at ease; in a taking, in a way; disturbed; discontented; out of humor; weary., heavy laden, stricken, crushed, a prey to, victimized, ill-used.

propelled; propelling; propulsive, projectile.

drawing; tractile, tractive.

required; requisite, needful, necessary, imperative, essential, indispensable, prerequisite; called for; in demand, in request., urgent, exigent, pressing, instant, crying, absorbing., in want of; destitute of.