sanctimoniously
/ˌsæŋktɪˈmoʊniəsli/
adverb
- In a way that pretends to be morally superior, often annoyingly or hypocritically.
- He sanctimoniously lectured us about recycling, but he throws away plastic bottles every day.
- The politician sanctimoniously declared that he would never accept bribes, though everyone knew he had.
- She smiled sanctimoniously as she reminded everyone that she had never broken a rule.