Synset

highly complex or intricate and occasionally devious
<adj.all>   freq. cnt.: 4 freq. cnt.: 2 freq. cnt.: 2

Byzantine

convoluted

involved

knotty

tangled

tortuous

sample sentences

"the Byzantine tax structure"
"Byzantine methods for holding on to his chairmanship"
"convoluted legal language"
"convoluted reasoning"
"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"