Definition of "pertinacious" in English

adjective

1. Holding tenaciously to an opinion or purpose.

2. Stubbornly resolute or tenacious.

   • [O]ne of the Dissenters, which I could, but forbear, to name appeared to Dr. Sanderson to be so bold, so troublesome, and so illogical in the dispute, as forced patient Dr. Sanderson, who was then Bishop of Lincoln, and a moderator with other Bishops, to say, with an unusual earnestness, "That he had never met with a man of more pertinacious confidence, and less abilities, in all his conversation."