This system, as you, Ancient Person, observe, is much complexed.

Kennedy saw that it was no unnecessary precaution, for the passages had become more complexed and tortuous than ever, with a perfect network of intersecting corridors.

Adj. gnarled, knarled^. complex, complexed; intricate, complicated, perplexed, involved, raveled, entangled, knotted, tangled, inextricable; irreducible.