complication

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Adjectives:

accomplished with difficulty, aerumnous, aground, arduous, at a loss, at a nonplus, at a standstill, at bay, at cross, at the end of one's tether, awkward, beset with difficulties, between Scylla and Charybdis, between two stools, complicated, crabbed, critical, delicate, desperate, difficult, difficult to deal with, driven from post to pillar, driven into a corner, driven to extremity, driven to one's wit's end, driven to the wall, embarrassing, encompassed with difficulties, entangled by difficulties, farpotshket, fashious, feisty, formidable, full of difficulties, graveled, hard, hard, hard, hard put to it, hard to deal with, hard up, herculean, ill, impracticable, in a clever stick, in a fine pickle, in a fix, in a scrape, in deep water, in difficulty, in hot water, in the suds, in the wrong box, intractable, intricate, invious, irksome, knotted, laborious, labyrinthine, more easily said than done, nonplussed, not easy, not feasible, not made with rose, not to be handled with kid gloves, onerous, operose, out of one's depth, pathless, perplexing, perverse, pinched, plaguy, plexiform, put to it, put to one's shifts, puzzled, quisquous, reduced to straits, refractory, rugged, run hard, set fast, sooner said than done, sorely pressed, straitened, stranded, stubborn, stuck fast, surrounded by breakers, surrounded by difficulties, surrounded by quicksands, surrounded by shoals, thorny, thrown out, ticklish, toilsome, tough, trackless, troublesome, trying, under a difficulty, unmanageable, unwieldy, up a tree

Related

Adjectives:

analytic, cut-and-try, docimastic, empirical, essaying, experimental, icarian, on one's trial, peirastic, probationary, probative, probatory, provisional, tentative, under probation