Definition of "self-righteousness" [self•-right•eous•ness]
Confidence in one's own righteousness, self-assurance, smug. (noun)
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Use "self-righteousness" in a sentence
"It's so insanely inmoral to expect we can invade and remodel countries we don't like via self-righteousness means when we can't arrive at concensus here on virtually anything."
"Hysteria, born of self-righteousness, is delightful for a few moments."
"I seriously doubt her answer would include being subjected to the voyeuristic self-righteousness of some random dude she doesn't know from Adam in order that he might feel like he's a modern day Messiah."