scrappiness vs feistiness

scrappiness and feistiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
scrappiness	Yes	No	No	No
feistiness	Yes	No	No	No

As nouns, scrappiness and feistiness are synonyms defined as:

scrappiness and feistiness: The quality or state of being tenacious, energetic, spunky.

scrappiness (noun)	feistiness (noun)
the trait of being scrappy and pugnacious	The quality or state of being tenacious, energetic, spunky.
The quality or state of being tenacious, energetic, spunky.