self-im·por·tance /-ɪmˈpɔrtṇ(t)s, tən(t)s/
  自尊,自負,自大的態度
  Self-im·por·tance n. An exaggerated estimate of one's own importance or merit, esp. as manifested by the conduct or manners; self-conceit.
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  self-importance
       n 1: an inflated feeling of pride in your superiority to others
            [syn: ego, egotism]
       2: an exaggerated opinion of your own importance [syn: egotism,
           swelled head]