self-importance Meaning, Definition & Usage
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noun an inflated feeling of pride in your superiority to others
ego; egotism.
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noun an exaggerated opinion of your own importance
swelled head; egotism.
WordNet
Self`-im*por"tance noun
Definitions
An exaggerated estimate of one's own importance or merit, esp. as manifested by the conduct or manners; self-conceit.