Meanings of too unintelligent in English

He was too unintelligent to have the notion of such a crime.

Neither does it tarry long in the hands of those too slothful, too dishonest, or too unintelligent to exercise it.

The assumption of some sceptical writers that an apostle must have been too unintelligent to enrich his vocabulary, scarcely deserves serious examination.

With China, or some distant country, too unintelligent of us and too unintelligible to us, there still sometimes rises necessary occasion for a war.