powerlessness 

英汉解释

n. 无力；无能为力；无力量

同义词

n. impotence，impotency

反义词

n.   power，powerfulness

参考例句

1. There can be a sense of powerlessness, hopelessness and an all-pervasive gloom.
那里可能是无力、绝望和所有弥漫的幽暗感觉。
2. They're declarations of powerlessness, one of the most psychologically debilitating conditions human beings can experience.
它们是“无力”（人类能体验到从心理方面说最为令人削弱的情况之一）的申明。
3. Ultimatums are expressions of powerlessness, empty threats designed to try to influence a situation someone has no control over.
最后通牒是无能为力的表达，是空洞的威胁，试图用来影响一个无从控制的结果。

英英解释

n.
  1. the quality of lacking strength or power; being weak and feeble

网络释义

POWERLESSNESS
无能为力; 无权力; 无资源; 无力量;
perceived powerlessness
这种感觉到的无权;
risk for powerlessness
无权力的危险;
sense of powerlessness
无力感;