1、discontentment或discontent，n.不满; 不愉快。

2、Sometimes discontent turned into action.不满有时导致行动。

3、dissatisfactionn.（名词）The condition or feeling of being displeased or unsatisfied; discontent.不满，不悦：不高兴或不满足的状况或感觉；不满意

4、A cause of discontent.不满意的原因