self-important[adjective]Synonyms: conceited, bigheaded, cocky, full of oneself, pompous, swollen-headed
[TahlilGaran] English Synonym Dictionary ▲
ˌself-imˈportant adjective behaving in a way that shows you think you are more important than other people – used to show disapproval:
a self-important pompous little man—self-importance noun [uncountable]—self-importantly adverb [TahlilGaran] Dictionary of Contemporary English ▲