Tortuous

1. adjective

   highly complex or intricate and occasionally devious; ; ; ; ; ; ; ; - Sir Walter Scott

   “the Byzantine tax structure”

   Similar: byzantine, convoluted, involved, knotty, tangled

2. adjective

   marked by repeated turns and bends

   “a tortuous road up the mountain”

   Similar: twisting, twisty, winding, voluminous

3. adjective

   not straightforward

   “his tortuous reasoning”