DICT.TW Dictionary Taiwan

 self-as·ser·tion /-əˈsɝʃən/
 自作主張

 Self-as·ser·tion n. The act of asserting one's self, or one's own rights or claims; the quality of being self-asserting.
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 self-assertion
      n 1: the act of putting forth your own opinions in a boastful or
           inconsiderate manner that implies you feel superior to
           others
      2: the act of asserting yourself in an aggressive manner