self-righteous
adjective /ˌself ˈraɪtʃəs/
/ˌself ˈraɪtʃəs/
(disapproving)- feeling or behaving as if what you say or do is always morally right, and other people are wrong
以正人君子自居的；自以为正直的 synonym sanctimonious- He was in one of his self-righteous moods.
他又以正人君子自居了。 - She reacted with self-righteous indignation.
她做出了自以为是的愤慨反应。 - We have to learn tolerance and to stop being so self-righteous.
我们必须学会宽容，不要再这么自以为是了。
- He was in one of his self-righteous moods.