labyrinthine

relating to or affecting or originating in the inner ear

• “labyrinthine deafness”

resembling a labyrinth in form or complexity

• “a labyrinthine network of tortuous footpaths”

highly involved or intricate

• “the Byzantine tax structure”
• “convoluted legal language”
• “convoluted reasoning”
• “intricate needlework”
• “an intricate labyrinth of refined phraseology”
• “the plot was too involved”
• “a knotty problem”