indigestible
in-di-gest-i-ble
adjective
Information or ideas that are difficult to understand or accept.
"His lecture was full of indigestible theories."
adjective
Food that is difficult or impossible for the body to digest.
"The heavy pudding proved quite indigestible."
Thesaurus
Synonyms: nondigestible, undigested, heavy, stodgy, flatulent
Antonyms: digestible