Byzantine

Adjective

 * 1) Overly complex or intricate.
 * 2)  Of or pertaining to Byzantium.
 * 3) of a devious, usually stealthy manner, of practice.

Noun

 * 1)  A native of Byzantium (modern-day Istanbul)
 * 2)  Belonging to the civilization of the Eastern-Roman empire, between 331 A.D. when the capital was moved to Constantinople (now Istanbul) and up 1453 when it was conquered by the Turks.

Thesaurus
Machiavellian, artful, balled up, calculating, canny, collusive, complex, complicated, confounded, confused, connivent, conniving, conspiring, contriving, convoluted, crabbed, crafty, cunning, daedal, designing, devious, elaborate, embrangled, entangled, fouled up, foxy, gordian, guileful, implicated, insidious, intricate, intriguing, involuted, involved, knotted, knotty, knowing, labyrinthian, labyrinthine, loused up, many-faceted, matted, mazy, meandering, messed up, mixed up, mucked up, multifarious, pawky, perplexed, plotting, ramified, roundabout, scheming, screwed up, shrewd, slick, sly, snarled, sophisticated, stratagemical, subtile, subtle, tangled, tangly, twisted, up to, wily