anfractuous

adjective2

1. •
   (rare) sinuous, twisty, winding.

   • So intricate, so anfractuous, so unsearchable are the vvays of Providence. — 1668
2. •
   (rare) craggy, rugged, coarse, rough, uneven.

   • Paint me the bold anfractuous rocks / Faced by the snarled and yelping seas. — 1920