indigestible

1. ADJ Food that is indigestible cannot be digested easily. 难消化的

In our body, some food is indigestible. 在我们的身体中，有些食物是难消化的。

2. ADJ If you describe facts or ideas as indigestible, you mean that they are difficult to understand, complicated, and dull. 难理解的[表不满]

...a dense, indigestible and wordy book. ...一本冗长难懂的书。