sanctimonious
/ˌsæŋktɪˈmoʊniəs/
adjective
- Pretending to be morally better than other people, especially in an annoying or hypocritical way.
- His sanctimonious tone made everyone in the room uncomfortable.
- I can't stand his sanctimonious attitude when he talks about helping the poor.
- She gave a sanctimonious speech about honesty, but we knew she had lied on her resume.