A few women, true enough, are so pertinacious that they prefer defeat to compromise.

As it was useless arguing with so pertinacious a disputant we were compelled humbly to submit.

There is nothing so pertinacious, so unrelenting, and so difficult to change, as an aristocratical body.

These lovers, you know, dear, are so pertinacious.

Was there not already within her breast some cause for disquietude which had made her so pertinacious?

I cannot recall why I was so pertinacious on this subject, but I remember that my Father became a little restive under my cross-examination.

So pertinacious a beggar I had never seen.