spitefulness vs nastiness

spitefulness and nastiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
spitefulness	Yes	No	No	No
nastiness	Yes	No	No	No

As nouns, spitefulness and nastiness are synonyms defined as:

spitefulness and nastiness: malevolence by virtue of being malicious or spiteful or nasty

Other synonyms of spitefulness include bitchiness, cattiness, spite.

spitefulness (noun)	nastiness (noun)
malevolence by virtue of being malicious or spiteful or nasty	the quality of being highly unpleasant
feeling a need to see others suffer	malevolence by virtue of being malicious or spiteful or nasty
	a state characterized by foul or disgusting dirt and refuse