self–righteous

self–righteous /ˌsɛlfˈraÉȘtʃəs/ adjective
self–righteous
/ˌsɛlfˈraÉȘtʃəs/
adjective
Britannica Dictionary definition of SELF–RIGHTEOUS
[more self–righteous; most self–righteous] disapproving
: having or showing a strong belief that your own actions, opinions, etc., are right and other people's are wrong

— self–righteously

adverb

— self–righteousness

noun [noncount]