Meanings of tortuousness in English

His mind occupied itself at first chiefly with the tortuousness and weakness of his own character.

This transaction, taken in connection with the tortuousness of his public course, explains the distrust I have always expressed for him.

The tortuousness of the route must have made the journey twice as long as it need have been with a little more careful selection.

It was horrible that nowadays, in thinking of Susy, he should always suspect ulterior motives, be meanly on the watch for some hidden tortuousness.