stupidity

The inspector visited, one after another, the cells and dungeons of several of the prisoners, whose good behavior or stupidity recommended them to the clemency of the government.

I trust that I am not more dense than my neighbours, but I was always oppressed with a sense of my own stupidity in my dealings with Sherlock Holmes.

At the same time, it is stupidity rather than courage to refuse to recognise danger when it is close upon you.

The stupidity with which he was favoured by nature must guard his courtship from any charm that could make a woman wish for its continuance; and Miss Lucas, who accepted him solely from the pure and disinterested desire of an establishment, cared not how soon that establishment were gained.