tortuous

adjective

  1. 1

    not straightforward

    his tortuous reasoning

  2. 2

    highly complex or intricate and occasionally devious

    the Byzantine tax structure

    Byzantine methods for holding on to his chairmanship

  3. 3

    marked by repeated turns and bends

    a tortuous road up the mountain

    winding roads are full of surprises

Synonyms

Also useful for “tortuous”:Unscrambler