self-righteousness
noun/ˌself ˈraɪtʃəsnəs/
/ˌself ˈraɪtʃəsnəs/
[uncountable] (disapproving)- the attitude that what you say or do is always morally right, and other people are wrong synonym sanctimoniousness
- He had a look of smug self-righteousness on his face.
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self-righteousness