sanctimonious vs self-righteous

sanctimonious and self-righteous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
sanctimonious	No	Yes	No	No
self-righteous	No	Yes	No	No

As adjectives, sanctimonious and self-righteous are synonyms defined as:

Other synonyms of sanctimonious include holier-than-thou, pharisaic, pharisaical, pietistic, pietistical.

sanctimonious (adjective)	self-righteous (adjective)
excessively or hypocritically pious	excessively or hypocritically pious