Byzantine, addled, at a loss, at a nonplus, at a stand, at a standstill, at an impasse, baffled, balled up, balled-up, bamboozled, beat, bewildered, beyond one, bothered, buffaloed, chaotic, complex, complicated, confounded, confused, convoluted, crabbed, cramp, daedal, dazed, devious, difficult, discomposed, disconcerted, disordered, disorganized, disturbed, elaborate, embarrassed, embrangled, entangled, floored, flustered, fluttered, fouled up, fuddled, fussed, garbled, hard, hard to understand, implicated, in a dilemma, in a jumble, in a pother, in a pucker, in a stew, in a sweat, in a swivet, in a tizzy, in suspense, intricate, involuted, involved, jumbled, knotted, knotty, labyrinthian, labyrinthine, licked, loused up, many-faceted, matted, mazy, meandering, messed up, mixed up, mixed-up, mucked up, muddled, multifarious, mystified, nonplussed, obfuscated, obscure, obscured, on tenterhooks, overtechnical, perturbed, put-out, puzzled, ramified, rattled, roundabout, ruffled, scrambled, screwed up, shaken, shook, shuffled, snarled, stuck, stumped, subtle, tangled, tangly, thrown, tough, twisted, unsettled, upset