vitiate vs invalidate

vitiate and invalidate both are verbs.

Word	Noun	Adjective	Verb	Adverb
vitiate	No	No	Yes	No
invalidate	No	No	Yes	No

As verbs, vitiate and invalidate are synonyms defined as:

vitiate and invalidate: take away the legal force of or render ineffective

Other synonyms of vitiate include void.

vitiate (verb)	invalidate (verb)
take away the legal force of or render ineffective	take away the legal force of or render ineffective
make imperfect	show to be invalid
corrupt morally or by intemperance or sensuality	make invalid for use
	declare invalid