Definition of sanctimonious adjective from the Oxford Advanced Learner's Dictionary



BrE BrE//ˌsæŋktɪˈməʊniəs//
; NAmE NAmE//ˌsæŋktɪˈmoʊniəs//
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giving the impression that you feel you are better and more moral than other people synonym self-righteous a sanctimonious voice I wish she’d stop being so sanctimonious. I’m fed up with his sanctimonious attitude. Word Originearly 17th cent. (in the sense ‘holy in character’): from Latin sanctimonia ‘sanctity’ (from sanctus ‘holy’) + -ous.
See the Oxford Advanced American Dictionary entry: sanctimonious