C1 adjective /ˌsæŋktɪˈmoʊniəs/
sanctimonious
伪善的虔诚
Meaning
Making a show of being morally superior to others; hypocritically pious.
Example
He gave a sanctimonious speech about honesty while he himself was corrupt.
他发表了一篇关于诚实的伪善演讲,而他自己却腐败了。