responsibility的形容词是responsible，有责任的、负责的。例：He is responsible for cleaning the room.他负责打扫房间

responsible形容词adj.

，意为“需负责任的，承担责任的”

【例句】

We would have thought he would have a more responsible attitude 

我们本以为他会采取更负责的态度。

The committee which was responsible for this decision would consider it over again. 

对这一决定负责的委员会是会重新考虑它的。

responsibility名词n.

意为“责容任，责任心，职责，任务