Adjective
1. of or relating to the Eastern Orthodox Church or the rites performed in it;
"Byzantine monks""Byzantine rites"2. of or relating to or characteristic of the Byzantine Empire or the ancient city of Byzantium
3. highly involved or intricate;
"the Byzantine tax structure""convoluted legal language""convoluted reasoning""intricate needlework""an intricate labyrinth of refined phraseology""the plot was too involved""a knotty problem""got his way by labyrinthine maneuvering""Oh, what a tangled web we weave"- Sir Walter Scott"tortuous legal procedures""tortuous negotiations lasting for months"4. characterized by elaborate scheming and intrigue; devious;
"Byzantine methods for holding on to his chairmanship""a fine hand for Byzantine deals and cozy arrangements"