convoluted

curl, wind, or twist together

Having convolutions.

L Latin convolvere, to roll together

“Out of a number of twisted sticks, the manufacture of a Tuscarora Indian, I selected one of curled maple, curiously convoluted, and adorned with the carved images of a snake and a fish.”

— William H. (William Harris) Elson, Junior High School Literature, Book 1

“The archipelago is the northern terminus of the Inside Passage, a protected waterway of convoluted passages between islands and fjords, beginning in Puget Sound in Washington state.”