neglectfulness vs negligence

neglectfulness and negligence both are nouns.

Word	Noun	Adjective	Verb	Adverb
neglectfulness	Yes	No	No	No
negligence	Yes	No	No	No

As nouns, neglectfulness and negligence are synonyms defined as:

neglectfulness and negligence: the trait of neglecting responsibilities and lacking concern

Other synonyms of neglectfulness include neglect.

neglectfulness (noun)	negligence (noun)
the trait of neglecting responsibilities and lacking concern	failure to act with the prudence that a reasonable person would exercise under the same circumstances
	the trait of neglecting responsibilities and lacking concern