unintelligence

You might almost say, that this strange uncompromisedness in him involved a sort of unintelligence; for in his numerous trades, he did not seem to work so much by reason or by instinct, or simply because he had been tutored to it, or by any intermixture of all these, even or uneven; but merely by a kind of deaf and dumb, spontaneous literal process.

It would do away with all the multitude of the "parvenus," whom she disliked and mistrusted, not because they had arrived anywhere (she denied that), but because of their profound unintelligence of the world, which was the primary cause of the crudity of their perceptions and the aridity of their hearts.

Meredith Broussard, Artificial Unintelligence: How Computers Misunderstand the Wor/d (Cambridge, MA: MIT Press, 2018)

It should be pointed out that the Palestinian film-maker revealed that there are those among his own compatriots who feel that the Jews possess the same 'qualities', aka unintelligence and barbarism.

Perhaps more significantly, the Pelegostos embody a specific set of negative stereotypes--primitivism, unintelligence, and most pervasively, cannibalism--that have plagued Kalinago and Garifuna people for centuries.

Typically, online abuse directed at women includes accusations of unintelligence and ugliness--often combined with 'corrective' threats of violent sex acts (Jane, 2014b: 3).