undigesting

English

Etymology

un- +‎ digesting

Adjective

undigesting (not comparable)

1. That does not digest.
   • 1877, Charles Kingsley, Frances Eliza Grenfell Kingsley, Charles Kingsley: His Letters and Memoires of His Life, page 215:

     You first taught me that the doctrine was a live thing, and not a mere formula to be swallowed by the undigesting reason, and from the time that I learnt from you that a Father meant a real Father, a Son a real Son, and a Holy Spirit a real Spirit, who was really good and holy.

2. Not undergoing digestion.
   • 1895, Sidney Martin, Functional & organic diseases of the stomach, page 179:

     During sleep, normal digestion is delayed or arrested altogether; and the sleeplessness may be directly ascribed in these cases to the presence of undigesting food, which is often indigestible and usually acid.