tenaciousness vs doggedness

tenaciousness and doggedness both are nouns.

Word	Noun	Adjective	Verb	Adverb
tenaciousness	Yes	No	No	No
doggedness	Yes	No	No	No

As nouns, tenaciousness and doggedness are synonyms defined as:

Other synonyms of tenaciousness include perseverance, persistence, persistency, pertinacity, tenacity.

tenaciousness (noun)	doggedness (noun)
persistent determination	persistent determination