recidivate vs regress

recidivate is not a noun while regress is a noun.

Word	Noun	Adjective	Verb	Adverb
recidivate	No	No	Yes	No
regress	Yes	No	Yes	No

As verbs, recidivate and regress are synonyms defined as:

Other synonyms of recidivate include fall back, lapse, relapse, retrogress.

As verbs, regress is a hypernym of recidivate; that is, regress is a word with a broader meaning than recidivate:

Other hypernyms of recidivate include retrovert, return, revert, turn back.

recidivate (noun)	regress (noun)
	returning to a former state
	the reasoning involved when you assume the conclusion is true and reason backward to the evidence

recidivate (verb)	regress (verb)
go back to bad behavior	go back to bad behavior
	get worse or fall back to a previous condition
	go back to a previous state
	go back to a statistical means