self-asserting

1. I am told that while I was still in long dresses I showed many signs of an eager, self-asserting disposition. Everything that I saw other people do I insisted upon imitating.
   我从家人口中得知，当我尚在襁褓中的时候，我就显示出了急躁而固执的个性。我会执意模仿别人做的每一件事情。
2. The character type exemplified by the Mad Professor is the self-asserting.
   以狂人教授为例的性格是一种维护自身的因素。

adj

1. aggressively self-assured
   1. an energetic assertive boy who was always ready to argue
   2. pointing directly at a listener is an assertive act

   Synonym:    assertiveself-assertive