tortuosity vs tortuousness

tortuosity and tortuousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
tortuosity	Yes	No	No	No
tortuousness	Yes	No	No	No

As nouns, tortuosity and tortuousness are synonyms defined as:

Other synonyms of tortuosity include contortion, crookedness, torsion.

tortuosity (noun)	tortuousness (noun)
a tortuous and twisted shape or position	puzzling complexity
	a tortuous and twisted shape or position