fee·ble·ness
noun/ˈfiːblnəs/
/ˈfiːblnəs/
[uncountable]- great weakness
软弱无力 - the old man's feebleness
老人的虚弱
- the old man's feebleness
- the fact of not being effective; lack of effort or energy
虚弱：没有效果的事实；缺乏努力或精力 - the feebleness of their attempts
他们的尝试是微弱的
- the feebleness of their attempts