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Definitions

sanctimonious

[sangk-tuh-moh-nee-uhs] / ˌsæŋk təˈmoʊ ni əs /
ADJECTIVE
self-righteous
Synonyms
STRONGEST
hypocritical insincere pious self-satisfied smug stuffy
WEAK
Pecksniffian bigoted canting deceiving false goody-goody holier-than-thou pharisaical pietistic preachy unctuous
Antonyms
STRONGEST
forthright honest open sincere unsure
WEAK
humble meek modest

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.