indigestible

American  

[in-di-jes-tuh-buhl, -dahy-] / ˌɪn dɪˈdʒɛs tə bəl, -daɪ- /

adjective

1. not digestible; not easily digested.

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indigestible British  

/ ˌɪndɪˈdʒɛstəbəl /

adjective

1. incapable of being digested or difficult to digest

2. difficult to understand or absorb mentally

   an indigestible book

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Other Word Forms

• indigestibility noun
• indigestibleness noun
• indigestibly adverb

Etymology

Origin of indigestible

From the Late Latin word indīgestibilis, dating back to 1520–30. See in- ³, digestible

Example Sentences

The indigestible remainder of the food and the capsule then passed on to the large intestine, where the food was fermented by the gut bacteria.

From Science Daily

With their high concentrations of indigestible oils and waxes, these fish are not suitable for human consumption.

From National Geographic

Fiber is used as an umbrella term for indigestible plant polysaccharides, so there are many different types with varying fermentability, solubility and viscosity in the gut.

From Salon

This key genetic factor preferentially enhances the utilization of arabinan -- a common constituent of plant polysaccharides, an indigestible fiber for humans, and a poorly accessible source of nutrients for normal gut microbes.

From Science Daily

These indigestible dietary fibres are found in plant-derived foods such as onions, leeks, artichokes, wheat, bananas, and in high concentrations in chicory root.

From Science Daily