昏君 用英语怎么说？dragon emperor?

昏君
foolish emperor
a fatuous and self-indulgent ruler

无道昏君
an unprincipled, dim-witted ruler

他是历史上有名的暗弱昏君。
He is notorious for being a foolish emperor.

一个昏君是不会用多少时间来批复奏疏的。
A fatuous and self-indulgent ruler wouldn't spend much time reading and replying to memorials

fatuous emperor

fatuous：昏庸的（形）
fatuity：昏庸（名）

帝王的昏庸可以表达为：the king's fatuity

presumptuous and fatuous emperor

Unenlightened ruler

yeah..s