undigestable

English

Etymology

From un- +‎ digestable.

Adjective

undigestable (comparative more undigestable, superlative most undigestable)

1. Indigestible.
   • 2007 February 20, Henry Fountain, “These Chili Peppers Are Hot and Old”, in New York Times‎^[1]:

     My first thought was that that’s odd — things like that are usually caused by undigestable starches, and peppers don’t have starches.