Self-assertion is confidence that you have in speaking firmly about your opinions and demanding the rights that you believe you should have.
例句
...her silence and lack of self-assertion...她的沉默和缺乏主見They are driven on partly by a wish for democracy, but also by a desire for national self-assertion.驅動他們的一方面是對民主的期待，另一方面是對民族自立的渴望。
英英詞典釋義
Noun
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