nonperformance vs carelessness

nonperformance and carelessness both are nouns.

Word	Noun	Adjective	Verb	Adverb
nonperformance	Yes	No	No	No
carelessness	Yes	No	No	No

As nouns, nonperformance and carelessness are synonyms defined as:

nonperformance and carelessness: failure to act with the prudence that a reasonable person would exercise under the same circumstances

Other synonyms of nonperformance include neglect, negligence.

nonperformance (noun)	carelessness (noun)
failure to act with the prudence that a reasonable person would exercise under the same circumstances	failure to act with the prudence that a reasonable person would exercise under the same circumstances
	the quality of not being careful or taking pains