unlearnable
adjective
un·learn·able ˌən-ˈlər-nə-bəl 
: incapable of being learned : not learnable
… personality characteristics of the intrinsic, unlearnable kind …
Jim Collins
Jim Collins
Example Sentences
Recent Examples on the Web The normal business of objections, sustainments, and approaches to the bench here seems like an upper-class dance, sinisterly comic and unlearnable by the likes of Mason, who grows increasingly befuddled. Vinson Cunningham, The New Yorker, 2 Nov. 2020 As groups grow, the need for systematic rules becomes greater; unlearnable in-group-speak with random variation won’t do. The Economist, 8 Aug. 2019 What if the ecorithms governing evolution and learning are unlearnable? Quanta Magazine, 28 Jan. 2016
Vinson Cunningham, The New Yorker, 2 Nov. 2020 As groups grow, the need for systematic rules becomes greater; unlearnable in-group-speak with random variation won’t do. The Economist, 8 Aug. 2019 What if the ecorithms governing evolution and learning are unlearnable? Quanta Magazine, 28 Jan. 2016 Word History
First Known Use
1785, in the meaning defined above