Definition of sanctimonious adjective from the Oxford Advanced American Dictionary

     

    sanctimonious

     adjective
    adjective
    NAmE//ˌsæŋktəˈmoʊniəs//
     
    (disapproving)
     
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  1. 1giving the impression that you feel you are better and more moral than other people synonym self-righteous
  2. 2 a sanctimonious voice I wish she'd stop being so sanctimonious.
sanctimoniouslyadverb
 
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his sanctimoniously paternal style
sanctimoniousnessnoun[uncountable]
 
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See the Oxford Advanced Learner's Dictionary entry: sanctimonious