Definitions of labyrinthine:

• adjective:   resembling a labyrinth in form or complexity

  Example: "A labyrinthine network of tortuous footpaths"

• adjective:   relating to or affecting or originating in the inner ear

  Example: "Labyrinthine deafness"

• adjective:   highly involved or intricate

  Example: "Got his way by labyrinthine maneuvering"