inedible

inedible [ in'edibl ]

adj. not suitable for food

同義詞： uneatable ^[1] 

柯林斯英漢雙解大詞典

inedible /ɪnˈɛdɪbəl/

ADJ If you say that something is inedible, you mean you cannot eat it, for example, because it tastes bad or is poisonous. 不可食用的

例：

Detainees complained of being given inedible food.

被拘押者抱怨所給的食物不能吃。 ^[1]