Serpentine

Serpentine; of or like a serpent or snake.
"serpentine coils"
synonyms: serpent like, snakelike "a serpentine form"

synonyms: winding, windy, zigzag, twisty, twisting and turning, labyrinthine, meandering, sinuous, snaky, tortuous
"a serpentine path"

synonyms: complicated, complex, intricate, involved, tortuous, convoluted, elaborate, knotty, confusing, bewildering, baffling, impenetrable