laxity vs remissness

laxity and remissness both are nouns.

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

As nouns, laxity and remissness are synonyms defined as:

Other synonyms of laxity include laxness, slackness.

laxity (noun)	remissness (noun)
the quality of being lax and neglectful	the quality of being lax and neglectful
the condition of being physiologically lax