Indigestible
Indigestible , adjective
[Latin indigestibilis: compare French indigestible. See In- not, and Digest.]
1.
Not digestible; not readily soluble in the digestive juices; not easily convertible into products fitted for absorption.
2.
Not digestible in the mind; distressful; intolerable; as, an indigestible simile. — T. Warton