0 Indigestible food is difficult or impossible for the stomach to break down: --
Beans have some indigestible carbohydrates that can give you wind.
1 Indigestible information is difficult or impossible to understand: --
The book is a largely indigestible mass of explanations of the legislative process.
The statistics are virtually indigestible presented in this form.
2 (of food) difficult or impossible to change into smaller forms that the body can absorb after eating it: --
I don't want to litter my blog with indigestible academic stuff.
His prose is often indigestible and pretentious.
The theorem is notoriously indigestible.
Octopuses are delicacies in some countries, but in others are regarded here as indigestible rubber.
The pigeon had body and texture, without being tough and indigestible.