complication vs tortuousness

complication and tortuousness both are nouns.

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

As nouns, complication and tortuousness are synonyms defined as:

Other synonyms of complication include complicatedness, knottiness.

complication (noun)	tortuousness (noun)
the act or process of complicating	puzzling complexity
puzzling complexity	a tortuous and twisted shape or position
a development that complicates a situation
a situation or condition that is complex or confused
any disease or disorder that occurs during the course of (or because of) another disease