laxity vs negligence

laxity and negligence both are nouns.

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

As nouns, negligence is a hypernym of laxity; that is, negligence is a word with a broader meaning than laxity:

Other hypernyms of laxity include neglect, neglectfulness.

laxity (noun)	negligence (noun)
the quality of being lax and neglectful	failure to act with the prudence that a reasonable person would exercise under the same circumstances
the condition of being physiologically lax	the trait of neglecting responsibilities and lacking concern