Synonyms for Convoluted (same or very similar meaning)
WordNet sense 1 (curled or wound (especially in concentric rings or spirals)):
coiledWordNet sense 2 (highly complex or intricate):
byzantine, involved, knotty, tangled, tortuousWordNet sense 3 (complicated in structure; consisting of interconnected parts):
complex, complexFrom the ODE community, based on WordNetadd/edit