egotistical

他总是打断别人说话，显得非常自负。

He keeps interrupting others, showing his ___egotistical nature.

她从不考虑别人的感受，表现得非常自私。

She never considers others' feelings and acts in a very ___egotistical way.

她总是谈论自己的成就，显得非常自我中心。

She constantly talks about her achievements, coming across as quite ___egotistical.