Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun self-importance

2 senses of self-importance

Sense 1
ego, egotism, self-importance -- (an inflated feeling of pride in your superiority to others)
       => pride, pridefulness -- (a feeling of self-respect and personal worth)

Sense 2
egotism, self-importance, swelled head -- (an exaggerated opinion of your own importance)
       => conceit, conceitedness, vanity -- (the trait of being unduly vain and conceited; false pride)