The quality of being winding, twisted, and full of intricate turns; the state of having many complicated passages or folds.
From 'anfractuous' (adjective) + '-ness' (a suffix forming abstract nouns). 'Anfractuous' comes from the same Latin root 'anfractus' as anfractuosity, but this form emphasizes the property through the '-ness' suffix rather than '-osity'.
Both anfractuosity and anfractuousness mean basically the same thing, but anfractuousness is the friendlier version—language often gives us multiple ways to express the same idea, especially with fancy old words.
Complete word intelligence in one call. Free tier — 50 lookups/day.