wrongheaded

But that doesn't make their words any less hurtful or wrongheaded.

We can be wrongheaded and wronghearted, or the reverse, as we ourselves determine.

In the ante-room, in a bad light, hangs a characteristic likeness of poor, wrongheaded Barry.

At last he called them "wrongheaded asses," flung himself into his boat, and made down the river to Jamestown.

Only somehow it was a difficult point to make clear, if a person was so wrongheaded he couldn't see it for himself.

In fact, it would seem to be allowed within philosophical circles that Mill's works are often wrongheaded and unphilosophical.