ANFRACTUOSITY (noun)
The quality of having many many twists and turns
"There are chance anfractuosities of ruin in the upper portions of the Coliseum which offer a very fair imitation of the rugged face of an Alpine cliff."
--Henry James, Italian Hours (1909)
Speaking of Henry James, he's a pretty anfractuous writer, in my reading experience. Even the title of perhaps his most famous work, The Turn of the Screw, is twisty. And here's a typically anfractuous Jamesian sentence: "He fairly caught himself shooting rueful glances, shy looks of pursuit, toward the embodied influence, the definite adversary, who had, by a stroke of her own, failed him, and on a fond theory of whose palpable presence he had, under Mrs. Newsome's inspiration, altogether proceeded." If you can parse that, you’re a better ex-English major than I am. (TWITO, page 14)