！edible反义词加前缀un，unedible中文意思是adj. 不能吃的不适于食用的

They don't waste their time on some inedible thing from their point of view.他们不会为不能吃的东西浪费时间，从他们的角度来看。

But many Africans and Asians who snack on insects consider shellfish inedible.